751490240 has 56 divisors (see below), whose sum is σ = 1797344640. Its totient is φ = 299276288.

The previous prime is 751490227. The next prime is 751490269. The reversal of 751490240 is 42094157.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 751490197 and 751490206.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69521 + ... + 79599.

It is an arithmetic number, because the mean of its divisors is an integer number (32095440).

Almost surely, 2^751490240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 751490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898672320).

751490240 is an abundant number, since it is smaller than the sum of its proper divisors (1045854400).

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

751490240 is a wasteful number, since it uses less digits than its factorization.

751490240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329 (or 10319 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 751490240 is about 27413.3223086878. The cubic root of 751490240 is about 909.1616640202.

The spelling of 751490240 in words is "seven hundred fifty-one million, four hundred ninety thousand, two hundred forty".