20192231040 has 256 divisors, whose sum is σ = 66347164800. Its totient is φ = 5220270080.

The previous prime is 20192231029. The next prime is 20192231053. The reversal of 20192231040 is 4013229102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20192231040.

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 31 ways as a sum of consecutive naturals, for example, 14090164 + ... + 14091596.

Almost surely, 2^20192231040 is an apocalyptic number.

20192231040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20192231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33173582400).

20192231040 is an abundant number, since it is smaller than the sum of its proper divisors (46154933760).

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

20192231040 is a wasteful number, since it uses less digits than its factorization.

20192231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 20192231040 in words is "twenty billion, one hundred ninety-two million, two hundred thirty-one thousand, forty".