437978934 has 16 divisors (see below), whose sum is σ = 973286640. Its totient is φ = 145992960.

The previous prime is 437978911. The next prime is 437978971. The reversal of 437978934 is 439879734.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 8110721 = 437978934 / (4 + 3 + 7 + 9 + 7 + 8 + 9 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4055307 + ... + 4055414.

It is an arithmetic number, because the mean of its divisors is an integer number (60830415).

Almost surely, 2^437978934 is an apocalyptic number.

437978934 is an abundant number, since it is smaller than the sum of its proper divisors (535307706).

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

437978934 is a wasteful number, since it uses less digits than its factorization.

437978934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110732 (or 8110726 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 437978934 is about 20927.9462441970. The cubic root of 437978934 is about 759.4241563668.

The spelling of 437978934 in words is "four hundred thirty-seven million, nine hundred seventy-eight thousand, nine hundred thirty-four".