20601974 has 16 divisors (see below), whose sum is σ = 32797440. Its totient is φ = 9684840.

The previous prime is 20601961. The next prime is 20601979. The reversal of 20601974 is 47910602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20601979) 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, 1082 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (2049840).

Almost surely, 2^20601974 is an apocalyptic number.

20601974 is a deficient number, since it is larger than the sum of its proper divisors (12195466).

20601974 is a wasteful number, since it uses less digits than its factorization.

20601974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20601974 is about 4538.9397440371. The cubic root of 20601974 is about 274.1382345443.

The spelling of 20601974 in words is "twenty million, six hundred one thousand, nine hundred seventy-four".