745319232 has 560 divisors, whose sum is σ = 2832445440. Its totient is φ = 188863488.

The previous prime is 745319221. The next prime is 745319233. The reversal of 745319232 is 232913547.

745319232 is a `hidden beast` number, since 7 + 4 + 531 + 92 + 32 = 666.

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

Its product of digits (45360) is a multiple of the sum of its prime factors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745319233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15857833 + ... + 15857879.

Almost surely, 2^745319232 is an apocalyptic number.

745319232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745319232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416222720).

745319232 is an abundant number, since it is smaller than the sum of its proper divisors (2087126208).

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

745319232 is a wasteful number, since it uses less digits than its factorization.

745319232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 101 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 745319232 is about 27300.5353793657. The cubic root of 745319232 is about 906.6662351017. Note that the first 3 decimals are identical.

The spelling of 745319232 in words is "seven hundred forty-five million, three hundred nineteen thousand, two hundred thirty-two".