229534640 has 40 divisors (see below), whose sum is σ = 538411968. Its totient is φ = 90997760.

The previous prime is 229534619. The next prime is 229534661. The reversal of 229534640 is 46435922.

It is an interprime number because it is at equal distance from previous prime (229534619) and next prime (229534661).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 229534640.

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, 3656 + ... + 21735.

Almost surely, 2^229534640 is an apocalyptic number.

229534640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229534640 is an abundant number, since it is smaller than the sum of its proper divisors (308877328).

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

229534640 is a wasteful number, since it uses less digits than its factorization.

229534640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25517 (or 25511 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 229534640 is about 15150.4006547682. The cubic root of 229534640 is about 612.2790673398.

The spelling of 229534640 in words is "two hundred twenty-nine million, five hundred thirty-four thousand, six hundred forty".