20492674020 has 288 divisors, whose sum is σ = 76731083520. Its totient is φ = 4311014400.

The previous prime is 20492674009. The next prime is 20492674049. The reversal of 20492674020 is 2047629402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6206370 + ... + 6209670.

Almost surely, 2^20492674020 is an apocalyptic number.

20492674020 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 20492674020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38365541760).

20492674020 is an abundant number, since it is smaller than the sum of its proper divisors (56238409500).

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

20492674020 is a wasteful number, since it uses less digits than its factorization.

20492674020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715 (or 3710 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 20492674020 in words is "twenty billion, four hundred ninety-two million, six hundred seventy-four thousand, twenty".