21341464 has 16 divisors (see below), whose sum is σ = 40579920. Its totient is φ = 10520160.

The previous prime is 21341407. The next prime is 21341479. The reversal of 21341464 is 46414312.

It is a congruent number.

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, 18219 + ... + 19354.

It is an arithmetic number, because the mean of its divisors is an integer number (2536245).

Almost surely, 2^21341464 is an apocalyptic number.

It is an amenable number.

21341464 is a deficient number, since it is larger than the sum of its proper divisors (19238456).

21341464 is a wasteful number, since it uses less digits than its factorization.

21341464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37650 (or 37646 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 21341464 is about 4619.6822401546. The cubic root of 21341464 is about 277.3797395737.

Adding to 21341464 its reverse (46414312), we get a palindrome (67755776).

The spelling of 21341464 in words is "twenty-one million, three hundred forty-one thousand, four hundred sixty-four".