400232630 has 64 divisors (see below), whose sum is σ = 855429120. Its totient is φ = 131932800.

The previous prime is 400232629. The next prime is 400232639. The reversal of 400232630 is 36232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400232639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392261 + ... + 393279.

It is an arithmetic number, because the mean of its divisors is an integer number (13366080).

Almost surely, 2^400232630 is an apocalyptic number.

400232630 is an abundant number, since it is smaller than the sum of its proper divisors (455196490).

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

400232630 is a wasteful number, since it uses less digits than its factorization.

400232630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 400232630 is about 20005.8149046721. The cubic root of 400232630 is about 736.9491080883.

Adding to 400232630 its reverse (36232004), we get a palindrome (436464634).

The spelling of 400232630 in words is "four hundred million, two hundred thirty-two thousand, six hundred thirty".