45400554 has 64 divisors (see below), whose sum is σ = 107105280. Its totient is φ = 14230080.

The previous prime is 45400549. The next prime is 45400603. The reversal of 45400554 is 45500454.

45400554 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 2×45400554² = 4122420607013832, which contains 22 as substring.

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

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, 61572 + ... + 62304.

It is an arithmetic number, because the mean of its divisors is an integer number (1673520).

Almost surely, 2^45400554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45400554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53552640).

45400554 is an abundant number, since it is smaller than the sum of its proper divisors (61704726).

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

45400554 is a wasteful number, since it uses less digits than its factorization.

45400554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 45400554 is about 6737.9933214571. The cubic root of 45400554 is about 356.7415684929.

It can be divided in two parts, 45400 and 554, that added together give a palindrome (45954).

The spelling of 45400554 in words is "forty-five million, four hundred thousand, five hundred fifty-four".