750440145 has 48 divisors (see below), whose sum is σ = 1504198080. Its totient is φ = 316665216.

The previous prime is 750440111. The next prime is 750440147. The reversal of 750440145 is 541044057.

It is not a de Polignac number, because 750440145 - 2⁶ = 750440081 is a prime.

It is a super-2 number, since 2×750440145² = 1126320822455242050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (750440147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29715 + ... + 48824.

It is an arithmetic number, because the mean of its divisors is an integer number (31337460).

Almost surely, 2^750440145 is an apocalyptic number.

It is an amenable number.

750440145 is an abundant number, since it is smaller than the sum of its proper divisors (753757935).

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

750440145 is a wasteful number, since it uses less digits than its factorization.

750440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78574 (or 78567 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 750440145 is about 27394.1626081178. The cubic root of 750440145 is about 908.7379942245.

The spelling of 750440145 in words is "seven hundred fifty million, four hundred forty thousand, one hundred forty-five".