20372333340 has 48 divisors (see below), whose sum is σ = 57384133632. Its totient is φ = 5400088896.

The previous prime is 20372333309. The next prime is 20372333341. The reversal of 20372333340 is 4333327302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 20372333298 and 20372333307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372333341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1006564 + ... + 1026603.

It is an arithmetic number, because the mean of its divisors is an integer number (1195502784).

Almost surely, 2^20372333340 is an apocalyptic number.

20372333340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20372333340 is an abundant number, since it is smaller than the sum of its proper divisors (37011800292).

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

20372333340 is a wasteful number, since it uses less digits than its factorization.

20372333340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033346 (or 2033344 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 30.

The spelling of 20372333340 in words is "twenty billion, three hundred seventy-two million, three hundred thirty-three thousand, three hundred forty".