402254330 has 16 divisors (see below), whose sum is σ = 736331040. Its totient is φ = 158174352.

The previous prime is 402254317. The next prime is 402254351. The reversal of 402254330 is 33452204.

It is a junction number, because it is equal to n+sod(n) for n = 402254296 and 402254305.

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, 340304 + ... + 341483.

It is an arithmetic number, because the mean of its divisors is an integer number (46020690).

Almost surely, 2^402254330 is an apocalyptic number.

402254330 is a deficient number, since it is larger than the sum of its proper divisors (334076710).

402254330 is a wasteful number, since it uses less digits than its factorization.

402254330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681853.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 402254330 is about 20056.2790666664. The cubic root of 402254330 is about 738.1878779798.

The spelling of 402254330 in words is "four hundred two million, two hundred fifty-four thousand, three hundred thirty".