745336980 has 36 divisors (see below), whose sum is σ = 2260856052. Its totient is φ = 198756480.

The previous prime is 745336961. The next prime is 745336981. The reversal of 745336980 is 89633547.

It can be written as a sum of positive squares in 2 ways, for example, as 284461956 + 460875024 = 16866^2 + 21468^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745336981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2070201 + ... + 2070560.

It is an arithmetic number, because the mean of its divisors is an integer number (62801557).

Almost surely, 2^745336980 is an apocalyptic number.

It is an amenable number.

745336980 is an abundant number, since it is smaller than the sum of its proper divisors (1515519072).

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

745336980 is a wasteful number, since it uses less digits than its factorization.

745336980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140776 (or 4140771 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 745336980 is about 27300.8604260012. The cubic root of 745336980 is about 906.6734317426.

The spelling of 745336980 in words is "seven hundred forty-five million, three hundred thirty-six thousand, nine hundred eighty".