45212742 has 80 divisors (see below), whose sum is σ = 109800240. Its totient is φ = 13856832.

The previous prime is 45212701. The next prime is 45212747. The reversal of 45212742 is 24721254.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45212747) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 113688 + ... + 114084.

It is an arithmetic number, because the mean of its divisors is an integer number (1372503).

Almost surely, 2^45212742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45212742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54900120).

45212742 is an abundant number, since it is smaller than the sum of its proper divisors (64587498).

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

45212742 is a wasteful number, since it uses less digits than its factorization.

45212742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 458 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 45212742 is about 6724.0420879111. The cubic root of 45212742 is about 356.2489684181.

Adding to 45212742 its reverse (24721254), we get a palindrome (69933996).

It can be divided in two parts, 45212 and 742, that added together give a palindrome (45954).

The spelling of 45212742 in words is "forty-five million, two hundred twelve thousand, seven hundred forty-two".