403401156 has 24 divisors (see below), whose sum is σ = 941950464. Its totient is φ = 134369760.

The previous prime is 403401127. The next prime is 403401191. The reversal of 403401156 is 651104304.

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, 6226 + ... + 29078.

It is an arithmetic number, because the mean of its divisors is an integer number (39247936).

Almost surely, 2^403401156 is an apocalyptic number.

It is an amenable number.

403401156 is an abundant number, since it is smaller than the sum of its proper divisors (538549308).

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

403401156 is a wasteful number, since it uses less digits than its factorization.

403401156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24331 (or 24329 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 403401156 is about 20084.8489165341. The cubic root of 403401156 is about 738.8887362298. Note that the first 3 decimals are identical.

The spelling of 403401156 in words is "four hundred three million, four hundred one thousand, one hundred fifty-six".