22453146 has 16 divisors (see below), whose sum is σ = 49896000. Its totient is φ = 7484364.

The previous prime is 22453139. The next prime is 22453147. The reversal of 22453146 is 64135422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22453147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207846 + ... + 207953.

It is an arithmetic number, because the mean of its divisors is an integer number (3118500).

Almost surely, 2^22453146 is an apocalyptic number.

22453146 is an abundant number, since it is smaller than the sum of its proper divisors (27442854).

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

22453146 is a wasteful number, since it uses less digits than its factorization.

22453146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415810 (or 415804 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 22453146 is about 4738.4750711595. The cubic root of 22453146 is about 282.1147111408.

Adding to 22453146 its reverse (64135422), we get a palindrome (86588568).

The spelling of 22453146 in words is "twenty-two million, four hundred fifty-three thousand, one hundred forty-six".