749450128 has 20 divisors (see below), whose sum is σ = 1659496960. Its totient is φ = 321192864.

The previous prime is 749450113. The next prime is 749450131. The reversal of 749450128 is 821054947.

749450128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345648 + ... + 3345871.

It is an arithmetic number, because the mean of its divisors is an integer number (82974848).

Almost surely, 2^749450128 is an apocalyptic number.

It is an amenable number.

749450128 is an abundant number, since it is smaller than the sum of its proper divisors (910046832).

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

749450128 is a wasteful number, since it uses less digits than its factorization.

749450128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691534 (or 6691528 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 749450128 is about 27376.0867912125. The cubic root of 749450128 is about 908.3382013000.

The spelling of 749450128 in words is "seven hundred forty-nine million, four hundred fifty thousand, one hundred twenty-eight".