402155230 has 64 divisors (see below), whose sum is σ = 805966848. Its totient is φ = 143700480.

The previous prime is 402155227. The next prime is 402155231. The reversal of 402155230 is 32551204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402155231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637015 + ... + 637645.

It is an arithmetic number, because the mean of its divisors is an integer number (12593232).

Almost surely, 2^402155230 is an apocalyptic number.

402155230 is an abundant number, since it is smaller than the sum of its proper divisors (403811618).

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

402155230 is a wasteful number, since it uses less digits than its factorization.

402155230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 402155230 is about 20053.8083664924. The cubic root of 402155230 is about 738.1272526312.

The spelling of 402155230 in words is "four hundred two million, one hundred fifty-five thousand, two hundred thirty".