734589680 has 40 divisors (see below), whose sum is σ = 1863188784. Its totient is φ = 267123200.

The previous prime is 734589641. The next prime is 734589689. The reversal of 734589680 is 86985437.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734589689) 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, 416501 + ... + 418260.

Almost surely, 2^734589680 is an apocalyptic number.

It is an amenable number.

734589680 is an abundant number, since it is smaller than the sum of its proper divisors (1128599104).

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

734589680 is a wasteful number, since it uses less digits than its factorization.

734589680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834785 (or 834779 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 734589680 is about 27103.3149264071. The cubic root of 734589680 is about 902.2944255441.

It can be divided in two parts, 73458 and 9680, that added together give a palindrome (83138).

The spelling of 734589680 in words is "seven hundred thirty-four million, five hundred eighty-nine thousand, six hundred eighty".