20495048 has 16 divisors (see below), whose sum is σ = 43918080. Its totient is φ = 8783568.

The previous prime is 20495029. The next prime is 20495089. The reversal of 20495048 is 84059402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182936 + ... + 183047.

It is an arithmetic number, because the mean of its divisors is an integer number (2744880).

Almost surely, 2^20495048 is an apocalyptic number.

20495048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20495048 is an abundant number, since it is smaller than the sum of its proper divisors (23423032).

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

20495048 is a wasteful number, since it uses less digits than its factorization.

20495048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365996 (or 365992 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20495048 is about 4527.1456791228. The cubic root of 20495048 is about 273.6631447452.

The spelling of 20495048 in words is "twenty million, four hundred ninety-five thousand, forty-eight".