749028390 has 64 divisors (see below), whose sum is σ = 1969505280. Its totient is φ = 180803840.

The previous prime is 749028353. The next prime is 749028391. The reversal of 749028390 is 93820947.

It is a super-2 number, since 2×749028390² = 1122087058051984200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749028391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74122 + ... + 83618.

It is an arithmetic number, because the mean of its divisors is an integer number (30773520).

Almost surely, 2^749028390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749028390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984752640).

749028390 is an abundant number, since it is smaller than the sum of its proper divisors (1220476890).

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

749028390 is a wasteful number, since it uses less digits than its factorization.

749028390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 749028390 is about 27368.3830359048. The cubic root of 749028390 is about 908.1677863066.

The spelling of 749028390 in words is "seven hundred forty-nine million, twenty-eight thousand, three hundred ninety".