745079580 has 192 divisors, whose sum is σ = 2661120000. Its totient is φ = 169537536.

The previous prime is 745079563. The next prime is 745079611. The reversal of 745079580 is 85970547.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1659196 + ... + 1659644.

It is an arithmetic number, because the mean of its divisors is an integer number (13860000).

Almost surely, 2^745079580 is an apocalyptic number.

745079580 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745079580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330560000).

745079580 is an abundant number, since it is smaller than the sum of its proper divisors (1916040420).

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

745079580 is a wasteful number, since it uses less digits than its factorization.

745079580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 745079580 is about 27296.1458817907. The cubic root of 745079580 is about 906.5690473642.

The spelling of 745079580 in words is "seven hundred forty-five million, seventy-nine thousand, five hundred eighty".