745651740 has 48 divisors (see below), whose sum is σ = 2091589920. Its totient is φ = 198481920.

The previous prime is 745651717. The next prime is 745651747. The reversal of 745651740 is 47156547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745651747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23220 + ... + 45060.

It is an arithmetic number, because the mean of its divisors is an integer number (43574790).

Almost surely, 2^745651740 is an apocalyptic number.

It is an amenable number.

745651740 is an abundant number, since it is smaller than the sum of its proper divisors (1345938180).

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

745651740 is a wasteful number, since it uses less digits than its factorization.

745651740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22422 (or 22420 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 745651740 is about 27306.6244709960. The cubic root of 745651740 is about 906.8010448774.

The spelling of 745651740 in words is "seven hundred forty-five million, six hundred fifty-one thousand, seven hundred forty".