75772244 has 12 divisors (see below), whose sum is σ = 137174100. Its totient is φ = 36579648.

The previous prime is 75772241. The next prime is 75772261. The reversal of 75772244 is 44227757.

It can be written as a sum of positive squares in 2 ways, for example, as 60248644 + 15523600 = 7762^2 + 3940^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75772198 and 75772207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75772241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326489 + ... + 326720.

It is an arithmetic number, because the mean of its divisors is an integer number (11431175).

Almost surely, 2^75772244 is an apocalyptic number.

It is an amenable number.

75772244 is a deficient number, since it is larger than the sum of its proper divisors (61401856).

75772244 is a wasteful number, since it uses less digits than its factorization.

75772244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653242 (or 653240 counting only the distinct ones).

The product of its digits is 109760, while the sum is 38.

The square root of 75772244 is about 8704.7253833765. The cubic root of 75772244 is about 423.1588059932.

The spelling of 75772244 in words is "seventy-five million, seven hundred seventy-two thousand, two hundred forty-four".