745031040 has 256 divisors, whose sum is σ = 2693779200. Its totient is φ = 173629440.

The previous prime is 745030987. The next prime is 745031057. The reversal of 745031040 is 40130547.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 745031040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473455 + ... + 475025.

It is an arithmetic number, because the mean of its divisors is an integer number (10522575).

Almost surely, 2^745031040 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 745031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346889600).

745031040 is an abundant number, since it is smaller than the sum of its proper divisors (1948748160).

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

745031040 is a wasteful number, since it uses less digits than its factorization.

745031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 745031040 is about 27295.2567307948. The cubic root of 745031040 is about 906.5493600636.

Adding to 745031040 its reverse (40130547), we get a palindrome (785161587).

The spelling of 745031040 in words is "seven hundred forty-five million, thirty-one thousand, forty".