21348462 has 16 divisors (see below), whose sum is σ = 44553600. Its totient is φ = 6806712.

The previous prime is 21348461. The next prime is 21348479. The reversal of 21348462 is 26484312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21348461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77212 + ... + 77487.

It is an arithmetic number, because the mean of its divisors is an integer number (2784600).

Almost surely, 2^21348462 is an apocalyptic number.

21348462 is an abundant number, since it is smaller than the sum of its proper divisors (23205138).

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

21348462 is a wasteful number, since it uses less digits than its factorization.

21348462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154727.

The product of its digits is 9216, while the sum is 30.

The square root of 21348462 is about 4620.4395894763. The cubic root of 21348462 is about 277.4100544464.

The spelling of 21348462 in words is "twenty-one million, three hundred forty-eight thousand, four hundred sixty-two".