21454614 has 12 divisors (see below), whose sum is σ = 46485036. Its totient is φ = 7151532.

The previous prime is 21454613. The next prime is 21454621. The reversal of 21454614 is 41645412.

21454614 is a `hidden beast` number, since 2 + 1 + 45 + 4 + 614 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21454613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595944 + ... + 595979.

It is an arithmetic number, because the mean of its divisors is an integer number (3873753).

Almost surely, 2^21454614 is an apocalyptic number.

21454614 is an abundant number, since it is smaller than the sum of its proper divisors (25030422).

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

21454614 is a wasteful number, since it uses less digits than its factorization.

21454614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191931 (or 1191928 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 21454614 is about 4631.9125639416. The cubic root of 21454614 is about 277.8690876469.

The spelling of 21454614 in words is "twenty-one million, four hundred fifty-four thousand, six hundred fourteen".