20954754 has 16 divisors (see below), whose sum is σ = 46566240. Its totient is φ = 6984900.

The previous prime is 20954753. The next prime is 20954779. The reversal of 20954754 is 45745902.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20954753) 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, 193972 + ... + 194079.

It is an arithmetic number, because the mean of its divisors is an integer number (2910390).

Almost surely, 2^20954754 is an apocalyptic number.

20954754 is an abundant number, since it is smaller than the sum of its proper divisors (25611486).

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

20954754 is a wasteful number, since it uses less digits than its factorization.

20954754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388062 (or 388056 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 20954754 is about 4577.6362896150. The cubic root of 20954754 is about 275.6941318561.

The spelling of 20954754 in words is "twenty million, nine hundred fifty-four thousand, seven hundred fifty-four".