22402745 has 8 divisors (see below), whose sum is σ = 27034560. Its totient is φ = 17821360.

The previous prime is 22402693. The next prime is 22402771. The reversal of 22402745 is 54720422.

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

It is not a de Polignac number, because 22402745 - 2¹⁰ = 22401721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11621 + ... + 13410.

It is an arithmetic number, because the mean of its divisors is an integer number (3379320).

Almost surely, 2^22402745 is an apocalyptic number.

It is an amenable number.

22402745 is a deficient number, since it is larger than the sum of its proper divisors (4631815).

22402745 is a wasteful number, since it uses less digits than its factorization.

22402745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25215.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 22402745 is about 4733.1538111496. The cubic root of 22402745 is about 281.9034635950.

The spelling of 22402745 in words is "twenty-two million, four hundred two thousand, seven hundred forty-five".