401620126 has 16 divisors (see below), whose sum is σ = 620524800. Its totient is φ = 194810400.

The previous prime is 401620099. The next prime is 401620147. The reversal of 401620126 is 621026104.

It is a super-2 number, since 2×401620126² = 322597451216511752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401620097 and 401620106.

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, 18051 + ... + 33601.

It is an arithmetic number, because the mean of its divisors is an integer number (38782800).

Almost surely, 2^401620126 is an apocalyptic number.

401620126 is a deficient number, since it is larger than the sum of its proper divisors (218904674).

401620126 is a wasteful number, since it uses less digits than its factorization.

401620126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15939.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 401620126 is about 20040.4622202184. The cubic root of 401620126 is about 737.7997255729.

It can be divided in two parts, 4016 and 20126, that added together give a palindrome (24142).

The spelling of 401620126 in words is "four hundred one million, six hundred twenty thousand, one hundred twenty-six".