749128350 has 48 divisors (see below), whose sum is σ = 1859880960. Its totient is φ = 199548000.

The previous prime is 749128349. The next prime is 749128357. The reversal of 749128350 is 53821947.

It is a super-2 number, since 2×749128350² = 1122386569547445000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749128299 and 749128308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749128357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170481 + ... + 174819.

It is an arithmetic number, because the mean of its divisors is an integer number (38747520).

Almost surely, 2^749128350 is an apocalyptic number.

749128350 is an abundant number, since it is smaller than the sum of its proper divisors (1110752610).

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

749128350 is a wasteful number, since it uses less digits than its factorization.

749128350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5500 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 749128350 is about 27370.2091698255. The cubic root of 749128350 is about 908.2081837135.

The spelling of 749128350 in words is "seven hundred forty-nine million, one hundred twenty-eight thousand, three hundred fifty".