745549056 has 288 divisors, whose sum is σ = 2655564800. Its totient is φ = 201553920.

The previous prime is 745549019. The next prime is 745549069. The reversal of 745549056 is 650945547.

745549056 is a `hidden beast` number, since 7 + 4 + 554 + 90 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×745549056² = 1111686789804982272, 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 31 ways as a sum of consecutive naturals, for example, 918891 + ... + 919701.

Almost surely, 2^745549056 is an apocalyptic number.

745549056 is a gapful number since it is divisible by the number (76) 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 745549056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327782400).

745549056 is an abundant number, since it is smaller than the sum of its proper divisors (1910015744).

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

745549056 is a wasteful number, since it uses less digits than its factorization.

745549056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 745549056 is about 27304.7442031600. The cubic root of 745549056 is about 906.7594176548.

The spelling of 745549056 in words is "seven hundred forty-five million, five hundred forty-nine thousand, fifty-six".