224977509 has 12 divisors (see below), whose sum is σ = 335450752. Its totient is φ = 145146600.

The previous prime is 224977481. The next prime is 224977517. The reversal of 224977509 is 905779422.

224977509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224977509 - 2⁷ = 224977381 is a prime.

It is a super-2 number, since 2×224977509² = 101229759111690162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224977009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402907 + ... + 403464.

Almost surely, 2^224977509 is an apocalyptic number.

It is an amenable number.

224977509 is a deficient number, since it is larger than the sum of its proper divisors (110473243).

224977509 is a wasteful number, since it uses less digits than its factorization.

224977509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806408 (or 806405 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 224977509 is about 14999.2502812641. The cubic root of 224977509 is about 608.1999329850.

The spelling of 224977509 in words is "two hundred twenty-four million, nine hundred seventy-seven thousand, five hundred nine".