401620174 has 16 divisors (see below), whose sum is σ = 619029936. Its totient is φ = 195307200.

The previous prime is 401620147. The next prime is 401620183. The reversal of 401620174 is 471026104.

It is a super-2 number, since 2×401620174² = 322597528327580552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19744 + ... + 34540.

It is an arithmetic number, because the mean of its divisors is an integer number (38689371).

Almost surely, 2^401620174 is an apocalyptic number.

401620174 is a deficient number, since it is larger than the sum of its proper divisors (217409762).

401620174 is a wasteful number, since it uses less digits than its factorization.

401620174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15171.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 401620174 is about 20040.4634177955. The cubic root of 401620174 is about 737.7997549659.

Adding to 401620174 its reverse (471026104), we get a palindrome (872646278).

The spelling of 401620174 in words is "four hundred one million, six hundred twenty thousand, one hundred seventy-four".