401241156 has 12 divisors (see below), whose sum is σ = 936229392. Its totient is φ = 133747048.

The previous prime is 401241143. The next prime is 401241163. The reversal of 401241156 is 651142104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16718370 + ... + 16718393.

It is an arithmetic number, because the mean of its divisors is an integer number (78019116).

Almost surely, 2^401241156 is an apocalyptic number.

It is an amenable number.

401241156 is an abundant number, since it is smaller than the sum of its proper divisors (534988236).

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

401241156 is a wasteful number, since it uses less digits than its factorization.

401241156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33436770 (or 33436768 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 401241156 is about 20031.0048674549. The cubic root of 401241156 is about 737.5675891708.

The spelling of 401241156 in words is "four hundred one million, two hundred forty-one thousand, one hundred fifty-six".