229740489 has 16 divisors (see below), whose sum is σ = 371298240. Its totient is φ = 139236480.

The previous prime is 229740487. The next prime is 229740493. The reversal of 229740489 is 984047922.

It is not a de Polignac number, because 229740489 - 2¹ = 229740487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229740487) 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, 386472 + ... + 387065.

It is an arithmetic number, because the mean of its divisors is an integer number (23206140).

Almost surely, 2^229740489 is an apocalyptic number.

It is an amenable number.

229740489 is a deficient number, since it is larger than the sum of its proper divisors (141557751).

229740489 is a wasteful number, since it uses less digits than its factorization.

229740489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773557 (or 773551 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 229740489 is about 15157.1926490363. The cubic root of 229740489 is about 612.4620453505.

The spelling of 229740489 in words is "two hundred twenty-nine million, seven hundred forty thousand, four hundred eighty-nine".