224520690 has 16 divisors (see below), whose sum is σ = 538849728. Its totient is φ = 59872176.

The previous prime is 224520671. The next prime is 224520719. The reversal of 224520690 is 96025422.

It is a super-2 number, since 2×224520690² = 100819080476152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 7484023 = 224520690 / (2 + 2 + 4 + 5 + 2 + 0 + 6 + 9 + 0).

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, 3741982 + ... + 3742041.

It is an arithmetic number, because the mean of its divisors is an integer number (33678108).

Almost surely, 2^224520690 is an apocalyptic number.

224520690 is an abundant number, since it is smaller than the sum of its proper divisors (314329038).

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

224520690 is a wasteful number, since it uses less digits than its factorization.

224520690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484033.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 224520690 is about 14984.0144821073. The cubic root of 224520690 is about 607.7880021076.

The spelling of 224520690 in words is "two hundred twenty-four million, five hundred twenty thousand, six hundred ninety".