45475438 has 8 divisors (see below), whose sum is σ = 68353560. Its totient is φ = 22690920.

The previous prime is 45475433. The next prime is 45475447. The reversal of 45475438 is 83457454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×45475438² = 4136030922583688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45475438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45475433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22173 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (8544195).

Almost surely, 2^45475438 is an apocalyptic number.

45475438 is a deficient number, since it is larger than the sum of its proper divisors (22878122).

45475438 is a wasteful number, since it uses less digits than its factorization.

45475438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46802.

The product of its digits is 268800, while the sum is 40.

The square root of 45475438 is about 6743.5478792695. The cubic root of 45475438 is about 356.9375981236.

The spelling of 45475438 in words is "forty-five million, four hundred seventy-five thousand, four hundred thirty-eight".