45434142 has 64 divisors (see below), whose sum is σ = 110617920. Its totient is φ = 13737600.

The previous prime is 45434119. The next prime is 45434159. The reversal of 45434142 is 24143454.

It is a happy number.

45434142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45434142² = 4128522518552328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42292 + ... + 43352.

It is an arithmetic number, because the mean of its divisors is an integer number (1728405).

Almost surely, 2^45434142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45434142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55308960).

45434142 is an abundant number, since it is smaller than the sum of its proper divisors (65183778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45434142 is a wasteful number, since it uses less digits than its factorization.

45434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1140 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 45434142 is about 6740.4852941016. The cubic root of 45434142 is about 356.8295210330.

Adding to 45434142 its reverse (24143454), we get a palindrome (69577596).

It can be divided in two parts, 454 and 34142, that added together give a square (34596 = 186²).

The spelling of 45434142 in words is "forty-five million, four hundred thirty-four thousand, one hundred forty-two".