413221731 has 12 divisors (see below), whose sum is σ = 596604888. Its totient is φ = 254289984.

The previous prime is 413221717. The next prime is 413221741. The reversal of 413221731 is 137122314.

It is a happy number.

It is not a de Polignac number, because 413221731 - 2¹¹ = 413219683 is a prime.

It is a super-2 number, since 2×413221731² = 341504397941272722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (413221741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407010 + ... + 408023.

It is an arithmetic number, because the mean of its divisors is an integer number (49717074).

Almost surely, 2^413221731 is an apocalyptic number.

413221731 is a deficient number, since it is larger than the sum of its proper divisors (183383157).

413221731 is a wasteful number, since it uses less digits than its factorization.

413221731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815062 (or 815049 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 413221731 is about 20327.8560354997. The cubic root of 413221731 is about 744.8366718516.

The spelling of 413221731 in words is "four hundred thirteen million, two hundred twenty-one thousand, seven hundred thirty-one".