749422080 has 240 divisors, whose sum is σ = 2832367824. Its totient is φ = 181616640.

The previous prime is 749422043. The next prime is 749422109. The reversal of 749422080 is 80224947.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251962 + ... + 254918.

Almost surely, 2^749422080 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 749422080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416183912).

749422080 is an abundant number, since it is smaller than the sum of its proper divisors (2082945744).

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

749422080 is a wasteful number, since it uses less digits than its factorization.

749422080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 749422080 is about 27375.5745145193. The cubic root of 749422080 is about 908.3268697087.

The spelling of 749422080 in words is "seven hundred forty-nine million, four hundred twenty-two thousand, eighty".