20892100380 has 48 divisors (see below), whose sum is σ = 58510559520. Its totient is φ = 5570019328.

The previous prime is 20892100373. The next prime is 20892100381. The reversal of 20892100380 is 8300129802.

It is a super-2 number, since 2×20892100380² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20892100381) 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, 260956 + ... + 331484.

It is an arithmetic number, because the mean of its divisors is an integer number (1218969990).

Almost surely, 2^20892100380 is an apocalyptic number.

20892100380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20892100380 is an abundant number, since it is smaller than the sum of its proper divisors (37618459140).

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

20892100380 is a wasteful number, since it uses less digits than its factorization.

20892100380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75478 (or 75476 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 20892100380 in words is "twenty billion, eight hundred ninety-two million, one hundred thousand, three hundred eighty".