401651012 has 12 divisors (see below), whose sum is σ = 803302080. Its totient is φ = 172136136.

The previous prime is 401651011. The next prime is 401651017. The reversal of 401651012 is 210156104.

401651012 is an admirable number.

It is a super-2 number, since 2×401651012² = 322647070881248288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401651011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7172312 + ... + 7172367.

It is an arithmetic number, because the mean of its divisors is an integer number (66941840).

Almost surely, 2^401651012 is an apocalyptic number.

It is an amenable number.

401651012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401651012 is a wasteful number, since it uses less digits than its factorization.

401651012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14344690 (or 14344688 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 401651012 is about 20041.2327964125. The cubic root of 401651012 is about 737.8186382193.

The spelling of 401651012 in words is "four hundred one million, six hundred fifty-one thousand, twelve".