21880702 has 8 divisors (see below), whose sum is σ = 33140016. Its totient is φ = 10834032.

The previous prime is 21880697. The next prime is 21880753. The reversal of 21880702 is 20708812.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 52903 + ... + 53314.

It is an arithmetic number, because the mean of its divisors is an integer number (4142502).

Almost surely, 2^21880702 is an apocalyptic number.

21880702 is a deficient number, since it is larger than the sum of its proper divisors (11259314).

21880702 is a wasteful number, since it uses less digits than its factorization.

21880702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106322.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 21880702 is about 4677.6812631901. The cubic root of 21880702 is about 279.6965334639.

The spelling of 21880702 in words is "twenty-one million, eight hundred eighty thousand, seven hundred two".