45438396 has 12 divisors (see below), whose sum is σ = 106022952. Its totient is φ = 15146128.

The previous prime is 45438391. The next prime is 45438397. The reversal of 45438396 is 69383454.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438391) 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, 1893255 + ... + 1893278.

It is an arithmetic number, because the mean of its divisors is an integer number (8835246).

Almost surely, 2^45438396 is an apocalyptic number.

It is an amenable number.

45438396 is an abundant number, since it is smaller than the sum of its proper divisors (60584556).

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

45438396 is a wasteful number, since it uses less digits than its factorization.

45438396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786540 (or 3786538 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 45438396 is about 6740.8008426299. The cubic root of 45438396 is about 356.8406573381.

The spelling of 45438396 in words is "forty-five million, four hundred thirty-eight thousand, three hundred ninety-six".