7742374140 has 48 divisors (see below), whose sum is σ = 21759282720. Its totient is φ = 2056953600.

The previous prime is 7742374127. The next prime is 7742374147. The reversal of 7742374140 is 414732477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7742374147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223711 + ... + 255990.

It is an arithmetic number, because the mean of its divisors is an integer number (453318390).

Almost surely, 2^7742374140 is an apocalyptic number.

It is an amenable number.

7742374140 is an abundant number, since it is smaller than the sum of its proper divisors (14016908580).

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

7742374140 is a wasteful number, since it uses less digits than its factorization.

7742374140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479982 (or 479980 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 39.

The square root of 7742374140 is about 87990.7616741667. The cubic root of 7742374140 is about 1978.2965095209.

The spelling of 7742374140 in words is "seven billion, seven hundred forty-two million, three hundred seventy-four thousand, one hundred forty".