400680600 has 48 divisors (see below), whose sum is σ = 1242111720. Its totient is φ = 106848000.

The previous prime is 400680571. The next prime is 400680601. The reversal of 400680600 is 6086004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400680601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333301 + ... + 334500.

Almost surely, 2^400680600 is an apocalyptic number.

400680600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400680600 is an abundant number, since it is smaller than the sum of its proper divisors (841431120).

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

400680600 is a wasteful number, since it uses less digits than its factorization.

400680600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667820 (or 667811 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 400680600 is about 20017.0077683954. The cubic root of 400680600 is about 737.2239549105.

The spelling of 400680600 in words is "four hundred million, six hundred eighty thousand, six hundred".