45198432 has 48 divisors (see below), whose sum is σ = 131831280. Its totient is φ = 15065856.

The previous prime is 45198421. The next prime is 45198449. The reversal of 45198432 is 23489154.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25293 + ... + 27020.

It is an arithmetic number, because the mean of its divisors is an integer number (2746485).

Almost surely, 2^45198432 is an apocalyptic number.

It is an amenable number.

45198432 is an abundant number, since it is smaller than the sum of its proper divisors (86632848).

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

45198432 is a wasteful number, since it uses less digits than its factorization.

45198432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52332 (or 52318 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 45198432 is about 6722.9779116103. The cubic root of 45198432 is about 356.2113797469.

The spelling of 45198432 in words is "forty-five million, one hundred ninety-eight thousand, four hundred thirty-two".