20493802 has 16 divisors (see below), whose sum is σ = 35194752. Its totient is φ = 8767440.

The previous prime is 20493791. The next prime is 20493839. The reversal of 20493802 is 20839402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10603 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (2199672).

Almost surely, 2^20493802 is an apocalyptic number.

20493802 is a deficient number, since it is larger than the sum of its proper divisors (14700950).

20493802 is a wasteful number, since it uses less digits than its factorization.

20493802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20493802 is about 4527.0080627275. The cubic root of 20493802 is about 273.6575988334.

The spelling of 20493802 in words is "twenty million, four hundred ninety-three thousand, eight hundred two".