21464954 has 8 divisors (see below), whose sum is σ = 36797088. Its totient is φ = 9199260.

The previous prime is 21464953. The next prime is 21464983. The reversal of 21464954 is 45946412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21464953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766592 + ... + 766619.

It is an arithmetic number, because the mean of its divisors is an integer number (4599636).

Almost surely, 2^21464954 is an apocalyptic number.

21464954 is a deficient number, since it is larger than the sum of its proper divisors (15332134).

21464954 is a wasteful number, since it uses less digits than its factorization.

21464954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533220.

The product of its digits is 34560, while the sum is 35.

The square root of 21464954 is about 4633.0285990915. The cubic root of 21464954 is about 277.9137199254.

The spelling of 21464954 in words is "twenty-one million, four hundred sixty-four thousand, nine hundred fifty-four".