742991488 has 16 divisors (see below), whose sum is σ = 1480178610. Its totient is φ = 371495680.

The previous prime is 742991479. The next prime is 742991497. The reversal of 742991488 is 884199247.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (742991479) and next prime (742991497).

It can be written as a sum of positive squares in only one way, i.e., 726410304 + 16581184 = 26952^2 + 4072^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2902183 + ... + 2902438.

Almost surely, 2^742991488 is an apocalyptic number.

It is an amenable number.

742991488 is a deficient number, since it is larger than the sum of its proper divisors (737187122).

742991488 is an equidigital number, since it uses as much as digits as its factorization.

742991488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804635 (or 5804623 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The square root of 742991488 is about 27257.8702029341. The cubic root of 742991488 is about 905.7213657800.

The spelling of 742991488 in words is "seven hundred forty-two million, nine hundred ninety-one thousand, four hundred eighty-eight".