401250831 has 4 divisors (see below), whose sum is σ = 535001112. Its totient is φ = 267500552.

The previous prime is 401250809. The next prime is 401250841. The reversal of 401250831 is 138052104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401250831 - 2⁹ = 401250319 is a prime.

It is a super-2 number, since 2×401250831² = 322004458756381122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401250841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 66875136 + ... + 66875141.

It is an arithmetic number, because the mean of its divisors is an integer number (133750278).

Almost surely, 2^401250831 is an apocalyptic number.

401250831 is a deficient number, since it is larger than the sum of its proper divisors (133750281).

401250831 is a wasteful number, since it uses less digits than its factorization.

401250831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133750280.

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

The square root of 401250831 is about 20031.2463666143. The cubic root of 401250831 is about 737.5735173672.

The spelling of 401250831 in words is "four hundred one million, two hundred fifty thousand, eight hundred thirty-one".