229749320544 has 48 divisors (see below), whose sum is σ = 612978735600. Its totient is φ = 75327644160.

The previous prime is 229749320509. The next prime is 229749320561. The reversal of 229749320544 is 445023947922.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 19610719 + ... + 19622430.

It is an arithmetic number, because the mean of its divisors is an integer number (12770390325).

Almost surely, 2^229749320544 is an apocalyptic number.

229749320544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

229749320544 is an abundant number, since it is smaller than the sum of its proper divisors (383229415056).

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

229749320544 is a wasteful number, since it uses less digits than its factorization.

229749320544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39233223 (or 39233215 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 229749320544 in words is "two hundred twenty-nine billion, seven hundred forty-nine million, three hundred twenty thousand, five hundred forty-four".