401390413 has 4 divisors (see below), whose sum is σ = 401435008. Its totient is φ = 401345820.

The previous prime is 401390401. The next prime is 401390441. The reversal of 401390413 is 314093104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401390413 is a prime.

It is a super-2 number, since 2×401390413² = 322228527296621138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401390443) 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, 3531 + ... + 28552.

It is an arithmetic number, because the mean of its divisors is an integer number (100358752).

Almost surely, 2^401390413 is an apocalyptic number.

It is an amenable number.

401390413 is a deficient number, since it is larger than the sum of its proper divisors (44595).

401390413 is a wasteful number, since it uses less digits than its factorization.

401390413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44594.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 401390413 is about 20034.7301703816. The cubic root of 401390413 is about 737.6590333281.

The spelling of 401390413 in words is "four hundred one million, three hundred ninety thousand, four hundred thirteen".