22770345 has 32 divisors (see below), whose sum is σ = 40948992. Its totient is φ = 10720512.

The previous prime is 22770331. The next prime is 22770353. The reversal of 22770345 is 54307722.

It is not a de Polignac number, because 22770345 - 2¹⁴ = 22753961 is a prime.

It is a super-2 number, since 2×22770345² = 1036977222838050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1947 + ... + 7023.

It is an arithmetic number, because the mean of its divisors is an integer number (1279656).

Almost surely, 2^22770345 is an apocalyptic number.

It is an amenable number.

22770345 is a deficient number, since it is larger than the sum of its proper divisors (18178647).

22770345 is a wasteful number, since it uses less digits than its factorization.

22770345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 22770345 is about 4771.8282659794. The cubic root of 22770345 is about 283.4369962859.

The spelling of 22770345 in words is "twenty-two million, seven hundred seventy thousand, three hundred forty-five".