401376291 has 8 divisors (see below), whose sum is σ = 535362240. Its totient is φ = 267487272.

The previous prime is 401376281. The next prime is 401376293. The reversal of 401376291 is 192673104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-401376291 is a prime.

It is a super-2 number, since 2×401376291² = 322205853953833362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401376293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13945 + ... + 31578.

It is an arithmetic number, because the mean of its divisors is an integer number (66920280).

Almost surely, 2^401376291 is an apocalyptic number.

401376291 is a deficient number, since it is larger than the sum of its proper divisors (133985949).

401376291 is a wasteful number, since it uses less digits than its factorization.

401376291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48465.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 401376291 is about 20034.3777292932. The cubic root of 401376291 is about 737.6503822802.

The spelling of 401376291 in words is "four hundred one million, three hundred seventy-six thousand, two hundred ninety-one".