402654146 has 16 divisors (see below), whose sum is σ = 667315584. Its totient is φ = 181245504.

The previous prime is 402654113. The next prime is 402654151. The reversal of 402654146 is 641456204.

It is a super-2 number, since 2×402654146² = 324260722581978632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256670 + ... + 258233.

It is an arithmetic number, because the mean of its divisors is an integer number (41707224).

Almost surely, 2^402654146 is an apocalyptic number.

402654146 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

402654146 is a deficient number, since it is larger than the sum of its proper divisors (264661438).

402654146 is a wasteful number, since it uses less digits than its factorization.

402654146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514945.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 402654146 is about 20066.2439434987. The cubic root of 402654146 is about 738.4323680724.

The spelling of 402654146 in words is "four hundred two million, six hundred fifty-four thousand, one hundred forty-six".