400573692 has 144 divisors (see below), whose sum is σ = 1095494400. Its totient is φ = 123171840.

The previous prime is 400573651. The next prime is 400573697. The reversal of 400573692 is 296375004.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400573697) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3674934 + ... + 3675042.

It is an arithmetic number, because the mean of its divisors is an integer number (7607600).

Almost surely, 2^400573692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400573692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547747200).

400573692 is an abundant number, since it is smaller than the sum of its proper divisors (694920708).

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

400573692 is a wasteful number, since it uses less digits than its factorization.

400573692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 400573692 is about 20014.3371611453. The cubic root of 400573692 is about 737.1583813594.

The spelling of 400573692 in words is "four hundred million, five hundred seventy-three thousand, six hundred ninety-two".