401651402 has 16 divisors (see below), whose sum is σ = 619348032. Its totient is φ = 195279840.

The previous prime is 401651387. The next prime is 401651423. The reversal of 401651402 is 204156104.

It is a super-2 number, since 2×401651402² = 322647697457131208, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9008 + ... + 29739.

It is an arithmetic number, because the mean of its divisors is an integer number (38709252).

Almost surely, 2^401651402 is an apocalyptic number.

401651402 is a deficient number, since it is larger than the sum of its proper divisors (217696630).

401651402 is a wasteful number, since it uses less digits than its factorization.

401651402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38893.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 401651402 is about 20041.2425263505. The cubic root of 401651402 is about 737.8188770246.

The spelling of 401651402 in words is "four hundred one million, six hundred fifty-one thousand, four hundred two".