20752670 has 24 divisors (see below), whose sum is σ = 39059496. Its totient is φ = 7938128.

The previous prime is 20752663. The next prime is 20752681. The reversal of 20752670 is 7625702.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3329 + ... + 7251.

It is an arithmetic number, because the mean of its divisors is an integer number (1627479).

Almost surely, 2^20752670 is an apocalyptic number.

20752670 is a deficient number, since it is larger than the sum of its proper divisors (18306826).

20752670 is a wasteful number, since it uses less digits than its factorization.

20752670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20752670 is about 4555.5098507192. The cubic root of 20752670 is about 274.8050188114.

The spelling of 20752670 in words is "twenty million, seven hundred fifty-two thousand, six hundred seventy".