749604240 has 320 divisors, whose sum is σ = 3219793920. Its totient is φ = 155727360.

The previous prime is 749604203. The next prime is 749604253. The reversal of 749604240 is 42406947.

749604240 is a `hidden beast` number, since 7 + 4 + 9 + 604 + 2 + 40 = 666.

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 = 749604195 and 749604204.

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 63 ways as a sum of consecutive naturals, for example, 164067 + ... + 168573.

It is an arithmetic number, because the mean of its divisors is an integer number (10061856).

Almost surely, 2^749604240 is an apocalyptic number.

749604240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749604240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609896960).

749604240 is an abundant number, since it is smaller than the sum of its proper divisors (2470189680).

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

749604240 is a wasteful number, since it uses less digits than its factorization.

749604240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4535 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 749604240 is about 27378.9013658328. The cubic root of 749604240 is about 908.4004585993.

The spelling of 749604240 in words is "seven hundred forty-nine million, six hundred four thousand, two hundred forty".