21452914 has 8 divisors (see below), whose sum is σ = 36776448. Its totient is φ = 9194100.

The previous prime is 21452909. The next prime is 21452923. The reversal of 21452914 is 41925412.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766162 + ... + 766189.

It is an arithmetic number, because the mean of its divisors is an integer number (4597056).

Almost surely, 2^21452914 is an apocalyptic number.

21452914 is a deficient number, since it is larger than the sum of its proper divisors (15323534).

21452914 is a wasteful number, since it uses less digits than its factorization.

21452914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532360.

The product of its digits is 2880, while the sum is 28.

The square root of 21452914 is about 4631.7290507973. The cubic root of 21452914 is about 277.8617482789.

It can be divided in two parts, 21452 and 914, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 21452914 in words is "twenty-one million, four hundred fifty-two thousand, nine hundred fourteen".