20954654 has 24 divisors (see below), whose sum is σ = 37558440. Its totient is φ = 8736336.

The previous prime is 20954653. The next prime is 20954683. The reversal of 20954654 is 45645902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20954653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (1564935).

Almost surely, 2^20954654 is an apocalyptic number.

20954654 is a deficient number, since it is larger than the sum of its proper divisors (16603786).

20954654 is a wasteful number, since it uses less digits than its factorization.

20954654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 20954654 is about 4577.6253669343. The cubic root of 20954654 is about 275.6936933008.

The spelling of 20954654 in words is "twenty million, nine hundred fifty-four thousand, six hundred fifty-four".