21348794 has 8 divisors (see below), whose sum is σ = 32058720. Its totient is φ = 10662556.

The previous prime is 21348781. The next prime is 21348809. The reversal of 21348794 is 49784312.

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, 3464 + ... + 7395.

It is an arithmetic number, because the mean of its divisors is an integer number (4007340).

Almost surely, 2^21348794 is an apocalyptic number.

21348794 is a deficient number, since it is larger than the sum of its proper divisors (10709926).

21348794 is a wasteful number, since it uses less digits than its factorization.

21348794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11844.

The product of its digits is 48384, while the sum is 38.

The square root of 21348794 is about 4620.4755166541. The cubic root of 21348794 is about 277.4114924838.

The spelling of 21348794 in words is "twenty-one million, three hundred forty-eight thousand, seven hundred ninety-four".