75742744 has 64 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 28780800.

The previous prime is 75742739. The next prime is 75742753. The reversal of 75742744 is 44724757.

It is a junction number, because it is equal to n+sod(n) for n = 75742697 and 75742706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23757 + ... + 26755.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^75742744 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 75742744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

75742744 is an abundant number, since it is smaller than the sum of its proper divisors (105697256).

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

75742744 is a wasteful number, since it uses less digits than its factorization.

75742744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064 (or 3060 counting only the distinct ones).

The product of its digits is 219520, while the sum is 40.

The square root of 75742744 is about 8703.0307364734. The cubic root of 75742744 is about 423.1038834847.

The spelling of 75742744 in words is "seventy-five million, seven hundred forty-two thousand, seven hundred forty-four".