745732416 has 224 divisors, whose sum is σ = 2346277248. Its totient is φ = 206069760.

The previous prime is 745732399. The next prime is 745732417. The reversal of 745732416 is 614237547.

It is a super-2 number, since 2×745732416² = 1112233672546394112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745732417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4310506 + ... + 4310678.

It is an arithmetic number, because the mean of its divisors is an integer number (10474452).

Almost surely, 2^745732416 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 745732416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173138624).

745732416 is an abundant number, since it is smaller than the sum of its proper divisors (1600544832).

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

745732416 is a wasteful number, since it uses less digits than its factorization.

745732416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 359 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 745732416 is about 27308.1016550034. The cubic root of 745732416 is about 906.8337475629.

The spelling of 745732416 in words is "seven hundred forty-five million, seven hundred thirty-two thousand, four hundred sixteen".