745264128 has 132 divisors (see below), whose sum is σ = 2311177632. Its totient is φ = 212889600.

The previous prime is 745264123. The next prime is 745264133. The reversal of 745264128 is 821462547.

It is an interprime number because it is at equal distance from previous prime (745264123) and next prime (745264133).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745264123) 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, 148053 + ... + 153003.

Almost surely, 2^745264128 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 745264128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155588816).

745264128 is an abundant number, since it is smaller than the sum of its proper divisors (1565913504).

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

745264128 is a wasteful number, since it uses less digits than its factorization.

745264128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4963 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 745264128 is about 27299.5261497338. The cubic root of 745264128 is about 906.6438902391.

The spelling of 745264128 in words is "seven hundred forty-five million, two hundred sixty-four thousand, one hundred twenty-eight".