400621352 has 16 divisors (see below), whose sum is σ = 756571200. Its totient is φ = 198869040.

The previous prime is 400621321. The next prime is 400621369. The reversal of 400621352 is 253126004.

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 3 ways as a sum of consecutive naturals, for example, 179024 + ... + 181247.

It is an arithmetic number, because the mean of its divisors is an integer number (47285700).

Almost surely, 2^400621352 is an apocalyptic number.

It is an amenable number.

400621352 is a deficient number, since it is larger than the sum of its proper divisors (355949848).

400621352 is a wasteful number, since it uses less digits than its factorization.

400621352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360416 (or 360412 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 400621352 is about 20015.5277722073. The cubic root of 400621352 is about 737.1876157432.

Adding to 400621352 its reverse (253126004), we get a palindrome (653747356).

It can be divided in two parts, 40062 and 1352, that added together give a palindrome (41414).

The spelling of 400621352 in words is "four hundred million, six hundred twenty-one thousand, three hundred fifty-two".