20650954 has 16 divisors (see below), whose sum is σ = 33499008. Its totient is φ = 9510592.

The previous prime is 20650951. The next prime is 20650979. The reversal of 20650954 is 45905602.

It is a super-2 number, since 2×20650954² = 852923802220232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20650951) 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, 4864 + ... + 8059.

It is an arithmetic number, because the mean of its divisors is an integer number (2093688).

Almost surely, 2^20650954 is an apocalyptic number.

20650954 is a deficient number, since it is larger than the sum of its proper divisors (12848054).

20650954 is a wasteful number, since it uses less digits than its factorization.

20650954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 20650954 is about 4544.3320741337. The cubic root of 20650954 is about 274.3553118640.

The spelling of 20650954 in words is "twenty million, six hundred fifty thousand, nine hundred fifty-four".