742721160 has 64 divisors (see below), whose sum is σ = 2359238400. Its totient is φ = 186407936.

The previous prime is 742721141. The next prime is 742721167. The reversal of 742721160 is 61127247.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (742721167) 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, 180000 + ... + 184079.

It is an arithmetic number, because the mean of its divisors is an integer number (36863100).

Almost surely, 2^742721160 is an apocalyptic number.

It is an amenable number.

742721160 is an abundant number, since it is smaller than the sum of its proper divisors (1616517240).

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

742721160 is a wasteful number, since it uses less digits than its factorization.

742721160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364110 (or 364106 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 742721160 is about 27252.9110371718. The cubic root of 742721160 is about 905.6115073902.

The spelling of 742721160 in words is "seven hundred forty-two million, seven hundred twenty-one thousand, one hundred sixty".