401376251 has 4 divisors (see below), whose sum is σ = 414323904. Its totient is φ = 388428600.

The previous prime is 401376229. The next prime is 401376257. The reversal of 401376251 is 152673104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401376251 is a prime.

It is a super-2 number, since 2×401376251² = 322205789733630002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401376257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6473780 + ... + 6473841.

It is an arithmetic number, because the mean of its divisors is an integer number (103580976).

Almost surely, 2^401376251 is an apocalyptic number.

401376251 is a deficient number, since it is larger than the sum of its proper divisors (12947653).

401376251 is a wasteful number, since it uses less digits than its factorization.

401376251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947652.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 401376251 is about 20034.3767310091. The cubic root of 401376251 is about 737.6503577762.

The spelling of 401376251 in words is "four hundred one million, three hundred seventy-six thousand, two hundred fifty-one".