20276080 has 40 divisors (see below), whose sum is σ = 51429744. Its totient is φ = 7372800.

The previous prime is 20276063. The next prime is 20276083. The reversal of 20276080 is 8067202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20276080² = 822238840332800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276083) 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, 10641 + ... + 12400.

Almost surely, 2^20276080 is an apocalyptic number.

20276080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20276080 is an abundant number, since it is smaller than the sum of its proper divisors (31153664).

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

20276080 is a wasteful number, since it uses less digits than its factorization.

20276080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23065 (or 23059 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20276080 is about 4502.8968453652. The cubic root of 20276080 is about 272.6850523195.

The spelling of 20276080 in words is "twenty million, two hundred seventy-six thousand, eighty".