402140230 has 16 divisors (see below), whose sum is σ = 728039664. Its totient is φ = 159925600.

The previous prime is 402140227. The next prime is 402140267. The reversal of 402140230 is 32041204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114496 + ... + 117955.

It is an arithmetic number, because the mean of its divisors is an integer number (45502479).

Almost surely, 2^402140230 is an apocalyptic number.

402140230 is a deficient number, since it is larger than the sum of its proper divisors (325899434).

402140230 is a wasteful number, since it uses less digits than its factorization.

402140230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232631.

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

The square root of 402140230 is about 20053.4343692047. The cubic root of 402140230 is about 738.1180753735.

Adding to 402140230 its reverse (32041204), we get a palindrome (434181434).

The spelling of 402140230 in words is "four hundred two million, one hundred forty thousand, two hundred thirty".