402431200 has 36 divisors (see below), whose sum is σ = 982437120. Its totient is φ = 160972160.

The previous prime is 402431149. The next prime is 402431209. The reversal of 402431200 is 2134204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402431209) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 250720 + ... + 252319.

It is an arithmetic number, because the mean of its divisors is an integer number (27289920).

Almost surely, 2^402431200 is an apocalyptic number.

402431200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402431200 is an abundant number, since it is smaller than the sum of its proper divisors (580005920).

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

402431200 is a wasteful number, since it uses less digits than its factorization.

402431200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503059 (or 503046 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 402431200 is about 20060.6879243958. The cubic root of 402431200 is about 738.2960551112.

Adding to 402431200 its reverse (2134204), we get a palindrome (404565404).

The spelling of 402431200 in words is "four hundred two million, four hundred thirty-one thousand, two hundred".