745719408 has 120 divisors (see below), whose sum is σ = 2425737600. Its totient is φ = 209434752.

The previous prime is 745719371. The next prime is 745719419. The reversal of 745719408 is 804917547.

It is a happy number.

745719408 is a `hidden beast` number, since 7 + 457 + 194 + 0 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53203 + ... + 65741.

It is an arithmetic number, because the mean of its divisors is an integer number (20214480).

Almost surely, 2^745719408 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 745719408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212868800).

745719408 is an abundant number, since it is smaller than the sum of its proper divisors (1680018192).

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

745719408 is a wasteful number, since it uses less digits than its factorization.

745719408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619 (or 12610 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 745719408 is about 27307.8634828871. The cubic root of 745719408 is about 906.8284748217.

The spelling of 745719408 in words is "seven hundred forty-five million, seven hundred nineteen thousand, four hundred eight".