745619472 has 160 divisors (see below), whose sum is σ = 2329017600. Its totient is φ = 227017728.

The previous prime is 745619467. The next prime is 745619477. The reversal of 745619472 is 274916547.

745619472 is a `hidden beast` number, since 7 + 456 + 194 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (745619467) and next prime (745619477).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (745619477) 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, 577804 + ... + 579092.

It is an arithmetic number, because the mean of its divisors is an integer number (14556360).

Almost surely, 2^745619472 is an apocalyptic number.

745619472 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 745619472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164508800).

745619472 is an abundant number, since it is smaller than the sum of its proper divisors (1583398128).

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

745619472 is a wasteful number, since it uses less digits than its factorization.

745619472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1410 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 745619472 is about 27306.0336189641. The cubic root of 745619472 is about 906.7879641157.

The spelling of 745619472 in words is "seven hundred forty-five million, six hundred nineteen thousand, four hundred seventy-two".