224455690 has 32 divisors (see below), whose sum is σ = 416022480. Its totient is φ = 87128064.

The previous prime is 224455687. The next prime is 224455697. The reversal of 224455690 is 96554422.

It can be written as a sum of positive squares in 8 ways, for example, as 47485881 + 176969809 = 6891^2 + 13303^2 .

It is a super-2 number, since 2×224455690² = 100760713546752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (224455697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241146 + ... + 242074.

Almost surely, 2^224455690 is an apocalyptic number.

224455690 is a deficient number, since it is larger than the sum of its proper divisors (191566790).

224455690 is a wasteful number, since it uses less digits than its factorization.

224455690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 224455690 is about 14981.8453469524. The cubic root of 224455690 is about 607.7293437672.

The spelling of 224455690 in words is "two hundred twenty-four million, four hundred fifty-five thousand, six hundred ninety".