400025352 has 32 divisors (see below), whose sum is σ = 1027094400. Its totient is φ = 129737664.

The previous prime is 400025303. The next prime is 400025377. The reversal of 400025352 is 253520004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224352 + ... + 226127.

It is an arithmetic number, because the mean of its divisors is an integer number (32096700).

Almost surely, 2^400025352 is an apocalyptic number.

It is an amenable number.

400025352 is an abundant number, since it is smaller than the sum of its proper divisors (627069048).

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

400025352 is a wasteful number, since it uses less digits than its factorization.

400025352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450525 (or 450521 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 400025352 is about 20000.6337899578. The cubic root of 400025352 is about 736.8218656603.

Adding to 400025352 its reverse (253520004), we get a palindrome (653545356).

It can be divided in two parts, 40002 and 5352, that added together give a palindrome (45354).

The spelling of 400025352 in words is "four hundred million, twenty-five thousand, three hundred fifty-two".