401973684 has 24 divisors (see below), whose sum is σ = 1071930048. Its totient is φ = 114849600.

The previous prime is 401973659. The next prime is 401973701. The reversal of 401973684 is 486379104.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2392617 + ... + 2392784.

It is an arithmetic number, because the mean of its divisors is an integer number (44663752).

Almost surely, 2^401973684 is an apocalyptic number.

It is an amenable number.

401973684 is an abundant number, since it is smaller than the sum of its proper divisors (669956364).

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

401973684 is a wasteful number, since it uses less digits than its factorization.

401973684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785415 (or 4785413 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 401973684 is about 20049.2813836307. The cubic root of 401973684 is about 738.0161643333.

The spelling of 401973684 in words is "four hundred one million, nine hundred seventy-three thousand, six hundred eighty-four".