20674588 has 12 divisors (see below), whose sum is σ = 39469752. Its totient is φ = 9397520.

The previous prime is 20674579. The next prime is 20674597. The reversal of 20674588 is 88547602.

It is an interprime number because it is at equal distance from previous prime (20674579) and next prime (20674597).

It is a self number, because there is not a number n which added to its sum of digits gives 20674588.

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 3 ways as a sum of consecutive naturals, for example, 234895 + ... + 234982.

It is an arithmetic number, because the mean of its divisors is an integer number (3289146).

Almost surely, 2^20674588 is an apocalyptic number.

It is an amenable number.

20674588 is a deficient number, since it is larger than the sum of its proper divisors (18795164).

20674588 is a wasteful number, since it uses less digits than its factorization.

20674588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469892 (or 469890 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 20674588 is about 4546.9317127047. The cubic root of 20674588 is about 274.4599340109.

The spelling of 20674588 in words is "twenty million, six hundred seventy-four thousand, five hundred eighty-eight".