749841840 has 480 divisors, whose sum is σ = 3008140800. Its totient is φ = 171072000.

The previous prime is 749841839. The next prime is 749841881. The reversal of 749841840 is 48148947.

749841840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4965765 + ... + 4965915.

It is an arithmetic number, because the mean of its divisors is an integer number (6266960).

Almost surely, 2^749841840 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 749841840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504070400).

749841840 is an abundant number, since it is smaller than the sum of its proper divisors (2258298960).

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

749841840 is a wasteful number, since it uses less digits than its factorization.

749841840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 749841840 is about 27383.2401296852. The cubic root of 749841840 is about 908.4964261944.

The spelling of 749841840 in words is "seven hundred forty-nine million, eight hundred forty-one thousand, eight hundred forty".