22002450 has 24 divisors (see below), whose sum is σ = 54566448. Its totient is φ = 5867280.

The previous prime is 22002443. The next prime is 22002509. The reversal of 22002450 is 5420022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73192 + ... + 73491.

It is an arithmetic number, because the mean of its divisors is an integer number (2273602).

Almost surely, 2^22002450 is an apocalyptic number.

22002450 is an abundant number, since it is smaller than the sum of its proper divisors (32563998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22002450 is a wasteful number, since it uses less digits than its factorization.

22002450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146698 (or 146693 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 22002450 is about 4690.6769234301. The cubic root of 22002450 is about 280.2143341891.

Adding to 22002450 its reverse (5420022), we get a palindrome (27422472).

The spelling of 22002450 in words is "twenty-two million, two thousand, four hundred fifty".