42908437 has 16 divisors (see below), whose sum is σ = 51246720. Its totient is φ = 35409600.

The previous prime is 42908431. The next prime is 42908447. The reversal of 42908437 is 73480924.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42908437 - 2¹⁵ = 42875669 is a prime.

It is a super-2 number, since 2×42908437² = 3682267931565938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42908396 and 42908405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42908431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6264 + ... + 11182.

It is an arithmetic number, because the mean of its divisors is an integer number (3202920).

Almost surely, 2^42908437 is an apocalyptic number.

It is an amenable number.

42908437 is a deficient number, since it is larger than the sum of its proper divisors (8338283).

42908437 is a wasteful number, since it uses less digits than its factorization.

42908437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 42908437 is about 6550.4531904289. The cubic root of 42908437 is about 350.0909613920.

The spelling of 42908437 in words is "forty-two million, nine hundred eight thousand, four hundred thirty-seven".