21301048 has 16 divisors (see below), whose sum is σ = 41019480. Its totient is φ = 10362528.

The previous prime is 21301043. The next prime is 21301057. The reversal of 21301048 is 84010312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301043) 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, 35686 + ... + 36277.

Almost surely, 2^21301048 is an apocalyptic number.

It is an amenable number.

21301048 is a deficient number, since it is larger than the sum of its proper divisors (19718432).

21301048 is a wasteful number, since it uses less digits than its factorization.

21301048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72006 (or 72002 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 21301048 is about 4615.3058403534. The cubic root of 21301048 is about 277.2045303536.

The spelling of 21301048 in words is "twenty-one million, three hundred one thousand, forty-eight".