20276670 has 16 divisors (see below), whose sum is σ = 48664080. Its totient is φ = 5407104.

The previous prime is 20276657. The next prime is 20276689. The reversal of 20276670 is 7667202.

It is a super-2 number, since 2×20276670² = 822286692577800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 675889 = 20276670 / (2 + 0 + 2 + 7 + 6 + 6 + 7 + 0).

It is a congruent number.

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, 337915 + ... + 337974.

It is an arithmetic number, because the mean of its divisors is an integer number (3041505).

Almost surely, 2^20276670 is an apocalyptic number.

20276670 is an abundant number, since it is smaller than the sum of its proper divisors (28387410).

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

20276670 is a wasteful number, since it uses less digits than its factorization.

20276670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675899.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 20276670 is about 4502.9623582704. The cubic root of 20276670 is about 272.6876971868.

The spelling of 20276670 in words is "twenty million, two hundred seventy-six thousand, six hundred seventy".