400105962 has 24 divisors (see below), whose sum is σ = 888041700. Its totient is φ = 130115520.

The previous prime is 400105943. The next prime is 400105967. The reversal of 400105962 is 269501004.

It can be written as a sum of positive squares in 2 ways, for example, as 376398801 + 23707161 = 19401^2 + 4869^2 .

It is not an unprimeable number, because it can be changed into a prime (400105967) 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, 270337 + ... + 271812.

Almost surely, 2^400105962 is an apocalyptic number.

400105962 is an abundant number, since it is smaller than the sum of its proper divisors (487935738).

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

400105962 is a wasteful number, since it uses less digits than its factorization.

400105962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542198 (or 542195 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 400105962 is about 20002.6488745866. The cubic root of 400105962 is about 736.8713552082.

Adding to 400105962 its reverse (269501004), we get a palindrome (669606966).

The spelling of 400105962 in words is "four hundred million, one hundred five thousand, nine hundred sixty-two".