20493876 has 24 divisors (see below), whose sum is σ = 51497824. Its totient is φ = 6305760.

The previous prime is 20493839. The next prime is 20493877. The reversal of 20493876 is 67839402.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65530 + ... + 65841.

Almost surely, 2^20493876 is an apocalyptic number.

20493876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20493876 is an abundant number, since it is smaller than the sum of its proper divisors (31003948).

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

20493876 is a wasteful number, since it uses less digits than its factorization.

20493876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131391 (or 131389 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 20493876 is about 4527.0162358887. The cubic root of 20493876 is about 273.6579282116.

The spelling of 20493876 in words is "twenty million, four hundred ninety-three thousand, eight hundred seventy-six".