401713506 has 24 divisors (see below), whose sum is σ = 902616624. Its totient is φ = 133904340.

The previous prime is 401713483. The next prime is 401713517. The reversal of 401713506 is 605317104.

It is a super-2 number, since 2×401713506² = 322747481805624072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 401713506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412800 + ... + 413771.

It is an arithmetic number, because the mean of its divisors is an integer number (37609026).

Almost surely, 2^401713506 is an apocalyptic number.

401713506 is an abundant number, since it is smaller than the sum of its proper divisors (500903118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401713506 is an equidigital number, since it uses as much as digits as its factorization.

401713506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826588 (or 826576 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 401713506 is about 20042.7918713936. The cubic root of 401713506 is about 737.8569026540.

The spelling of 401713506 in words is "four hundred one million, seven hundred thirteen thousand, five hundred six".