746745640 has 16 divisors (see below), whose sum is σ = 1680177780. Its totient is φ = 298698240.

The previous prime is 746745613. The next prime is 746745647. The reversal of 746745640 is 46547647.

It can be written as a sum of positive squares in 2 ways, for example, as 680062084 + 66683556 = 26078^2 + 8166^2 .

It is not an unprimeable number, because it can be changed into a prime (746745647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9334281 + ... + 9334360.

Almost surely, 2^746745640 is an apocalyptic number.

It is an amenable number.

746745640 is an abundant number, since it is smaller than the sum of its proper divisors (933432140).

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

746745640 is a wasteful number, since it uses less digits than its factorization.

746745640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668652 (or 18668648 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The square root of 746745640 is about 27326.6470683836. The cubic root of 746745640 is about 907.2442656326.

The spelling of 746745640 in words is "seven hundred forty-six million, seven hundred forty-five thousand, six hundred forty".