678432036 has 24 divisors (see below), whose sum is σ = 1583960224. Its totient is φ = 226008000.

The previous prime is 678431987. The next prime is 678432067. The reversal of 678432036 is 630234876.

It is a super-2 number, since 2×678432036² = 920540054942210592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 678431985 and 678432003.

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, 4911 + ... + 37161.

Almost surely, 2^678432036 is an apocalyptic number.

It is an amenable number.

678432036 is an abundant number, since it is smaller than the sum of its proper divisors (905528188).

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

678432036 is a wasteful number, since it uses less digits than its factorization.

678432036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34011 (or 34009 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 678432036 is about 26046.7279326982. The cubic root of 678432036 is about 878.6895249916.

The spelling of 678432036 in words is "six hundred seventy-eight million, four hundred thirty-two thousand, thirty-six".