400260633600 has 132 divisors (see below), whose sum is σ = 1322882494784. Its totient is φ = 106736148480.

The previous prime is 400260633599. The next prime is 400260633611. The reversal of 400260633600 is 6336062004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2529064 + ... + 2682663.

Almost surely, 2^400260633600 is an apocalyptic number.

400260633600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400260633600 is an abundant number, since it is smaller than the sum of its proper divisors (922621861184).

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

400260633600 is a wasteful number, since it uses less digits than its factorization.

400260633600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211760 (or 5211737 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 400260633600 its reverse (6336062004), we get a palindrome (406596695604).

The spelling of 400260633600 in words is "four hundred billion, two hundred sixty million, six hundred thirty-three thousand, six hundred".