745275888 has 240 divisors, whose sum is σ = 2476032000. Its totient is φ = 209139840.

The previous prime is 745275863. The next prime is 745275911. The reversal of 745275888 is 888572547.

745275888 is a `hidden beast` number, since 7 + 4 + 52 + 7 + 588 + 8 = 666.

It is a super-2 number, since 2×745275888² = 1110872298468377088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3901873 + ... + 3902063.

It is an arithmetic number, because the mean of its divisors is an integer number (10316800).

Almost surely, 2^745275888 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 745275888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238016000).

745275888 is an abundant number, since it is smaller than the sum of its proper divisors (1730756112).

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

745275888 is a wasteful number, since it uses less digits than its factorization.

745275888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 282 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 54.

The square root of 745275888 is about 27299.7415372380. The cubic root of 745275888 is about 906.6486590522.

The spelling of 745275888 in words is "seven hundred forty-five million, two hundred seventy-five thousand, eight hundred eighty-eight".