43452438 has 32 divisors (see below), whose sum is σ = 89147520. Its totient is φ = 14114880.

The previous prime is 43452413. The next prime is 43452457. The reversal of 43452438 is 83425434.

It is a super-2 number, since 2×43452438² = 3776228736287688, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43452399 and 43452408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45906 + ... + 46842.

It is an arithmetic number, because the mean of its divisors is an integer number (2785860).

Almost surely, 2^43452438 is an apocalyptic number.

43452438 is an abundant number, since it is smaller than the sum of its proper divisors (45695082).

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

43452438 is a wasteful number, since it uses less digits than its factorization.

43452438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its digits is 46080, while the sum is 33.

The square root of 43452438 is about 6591.8463270923. The cubic root of 43452438 is about 351.5642582944.

The spelling of 43452438 in words is "forty-three million, four hundred fifty-two thousand, four hundred thirty-eight".