401320502 has 16 divisors (see below), whose sum is σ = 679352400. Its totient is φ = 176127840.

The previous prime is 401320501. The next prime is 401320519. The reversal of 401320502 is 205023104.

It is a super-2 number, since 2×401320502² = 322116290651064008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401320501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313877 + ... + 315152.

It is an arithmetic number, because the mean of its divisors is an integer number (42459525).

Almost surely, 2^401320502 is an apocalyptic number.

401320502 is a deficient number, since it is larger than the sum of its proper divisors (278031898).

401320502 is a wasteful number, since it uses less digits than its factorization.

401320502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629071.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 401320502 is about 20032.9853491685. The cubic root of 401320502 is about 737.6162043073.

Adding to 401320502 its reverse (205023104), we get a palindrome (606343606).

The spelling of 401320502 in words is "four hundred one million, three hundred twenty thousand, five hundred two".