756738090 has 48 divisors (see below), whose sum is σ = 1969438536. Its totient is φ = 201600000.

The previous prime is 756738089. The next prime is 756738109. The reversal of 756738090 is 90837657.

It is a happy number.

756738090 is a `hidden beast` number, since 7 + 567 + 3 + 80 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 311063769 + 445674321 = 17637^2 + 21111^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104590 + ... + 111590.

Almost surely, 2^756738090 is an apocalyptic number.

756738090 is an abundant number, since it is smaller than the sum of its proper divisors (1212700446).

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

756738090 is a wasteful number, since it uses less digits than its factorization.

756738090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215 (or 8212 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 756738090 is about 27508.8729322013. The cubic root of 756738090 is about 911.2730602078.

The spelling of 756738090 in words is "seven hundred fifty-six million, seven hundred thirty-eight thousand, ninety".