20670496 has 48 divisors (see below), whose sum is σ = 50742720. Its totient is φ = 8052480.

The previous prime is 20670479. The next prime is 20670497. The reversal of 20670496 is 69407602.

It is not an unprimeable number, because it can be changed into a prime (20670497) 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, 1731 + ... + 6658.

It is an arithmetic number, because the mean of its divisors is an integer number (1057140).

Almost surely, 2^20670496 is an apocalyptic number.

It is an amenable number.

20670496 is an abundant number, since it is smaller than the sum of its proper divisors (30072224).

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

20670496 is a wasteful number, since it uses less digits than its factorization.

20670496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417 (or 8409 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 20670496 is about 4546.4817166684. The cubic root of 20670496 is about 274.4418254009.

The spelling of 20670496 in words is "twenty million, six hundred seventy thousand, four hundred ninety-six".