7742170040 has 64 divisors (see below), whose sum is σ = 19362123360. Its totient is φ = 2762206720.

The previous prime is 7742170021. The next prime is 7742170057. The reversal of 7742170040 is 400712477.

It is a junction number, because it is equal to n+sod(n) for n = 7742169979 and 7742170006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142679 + ... + 189318.

Almost surely, 2^7742170040 is an apocalyptic number.

It is an amenable number.

7742170040 is an abundant number, since it is smaller than the sum of its proper divisors (11619953320).

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

7742170040 is a wasteful number, since it uses less digits than its factorization.

7742170040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332072 (or 332068 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 7742170040 is about 87989.6018856774. The cubic root of 7742170040 is about 1978.2791257978.

The spelling of 7742170040 in words is "seven billion, seven hundred forty-two million, one hundred seventy thousand, forty".