734642560 has 64 divisors (see below), whose sum is σ = 1772535600. Its totient is φ = 291133440.

The previous prime is 734642521. The next prime is 734642561. The reversal of 734642560 is 65246437.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734642561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64495 + ... + 75025.

Almost surely, 2^734642560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 734642560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886267800).

734642560 is an abundant number, since it is smaller than the sum of its proper divisors (1037893040).

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

734642560 is a wasteful number, since it uses less digits than its factorization.

734642560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10659 (or 10647 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 734642560 is about 27104.2904352798. The cubic root of 734642560 is about 902.3160758094.

Adding to 734642560 its reverse (65246437), we get a palindrome (799888997).

The spelling of 734642560 in words is "seven hundred thirty-four million, six hundred forty-two thousand, five hundred sixty".