745630452 has 108 divisors (see below), whose sum is σ = 2308007520. Its totient is φ = 201815712.

The previous prime is 745630439. The next prime is 745630499. The reversal of 745630452 is 254036547.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22393 + ... + 44639.

It is an arithmetic number, because the mean of its divisors is an integer number (21370440).

Almost surely, 2^745630452 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 745630452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154003760).

745630452 is an abundant number, since it is smaller than the sum of its proper divisors (1562377068).

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

745630452 is a wasteful number, since it uses less digits than its factorization.

745630452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290 (or 22278 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 745630452 is about 27306.2346726897. The cubic root of 745630452 is about 906.7924152168.

Adding to 745630452 its reverse (254036547), we get a palindrome (999666999).

The spelling of 745630452 in words is "seven hundred forty-five million, six hundred thirty thousand, four hundred fifty-two".