401669726900 has 72 divisors (see below), whose sum is σ = 949980801504. Its totient is φ = 146521929600.

The previous prime is 401669726893. The next prime is 401669726951. The reversal of 401669726900 is 9627966104.

It is a super-2 number, since 2×401669726900² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1753406 + ... + 1969205.

Almost surely, 2^401669726900 is an apocalyptic number.

It is an amenable number.

401669726900 is an abundant number, since it is smaller than the sum of its proper divisors (548311074604).

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

401669726900 is a wasteful number, since it uses less digits than its factorization.

401669726900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722721 (or 3722714 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 401669726900 in words is "four hundred one billion, six hundred sixty-nine million, seven hundred twenty-six thousand, nine hundred".