401262813 has 36 divisors (see below), whose sum is σ = 675792000. Its totient is φ = 228762576.

The previous prime is 401262809. The next prime is 401262833. The reversal of 401262813 is 318262104.

It is not a de Polignac number, because 401262813 - 2² = 401262809 is a prime.

It is a super-2 number, since 2×401262813² = 322023690193345938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401262803) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 266938 + ... + 268436.

It is an arithmetic number, because the mean of its divisors is an integer number (18772000).

Almost surely, 2^401262813 is an apocalyptic number.

It is an amenable number.

401262813 is a deficient number, since it is larger than the sum of its proper divisors (274529187).

401262813 is a wasteful number, since it uses less digits than its factorization.

401262813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 401262813 is about 20031.5454471192. The cubic root of 401262813 is about 737.5808590076.

The spelling of 401262813 in words is "four hundred one million, two hundred sixty-two thousand, eight hundred thirteen".