400202048 has 14 divisors (see below), whose sum is σ = 794151066. Its totient is φ = 200100992.

The previous prime is 400202021. The next prime is 400202051. The reversal of 400202048 is 840202004.

It can be written as a sum of positive squares in only one way, i.e., 378224704 + 21977344 = 19448^2 + 4688^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126515 + ... + 3126642.

Almost surely, 2^400202048 is an apocalyptic number.

It is an amenable number.

400202048 is a deficient number, since it is larger than the sum of its proper divisors (393949018).

400202048 is an equidigital number, since it uses as much as digits as its factorization.

400202048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253169 (or 6253159 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 400202048 is about 20005.0505622955. The cubic root of 400202048 is about 736.9303373785.

The spelling of 400202048 in words is "four hundred million, two hundred two thousand, forty-eight".