749507040 has 96 divisors (see below), whose sum is σ = 2623289760. Its totient is φ = 199867392.

The previous prime is 749507023. The next prime is 749507047. The reversal of 749507040 is 40705947.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 749506986 and 749507004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749507047) 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 15 ways as a sum of consecutive naturals, for example, 82429 + ... + 91068.

It is an arithmetic number, because the mean of its divisors is an integer number (27325935).

Almost surely, 2^749507040 is an apocalyptic number.

It is an amenable number.

749507040 is an abundant number, since it is smaller than the sum of its proper divisors (1873782720).

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

749507040 is a wasteful number, since it uses less digits than its factorization.

749507040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173521 (or 173507 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 749507040 is about 27377.1262187981. The cubic root of 749507040 is about 908.3611932837.

The spelling of 749507040 in words is "seven hundred forty-nine million, five hundred seven thousand, forty".