7640394270 has 32 divisors (see below), whose sum is σ = 18348761088. Its totient is φ = 2036125728.

The previous prime is 7640394257. The next prime is 7640394301. The reversal of 7640394270 is 724930467.

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, 34254 + ... + 128273.

It is an arithmetic number, because the mean of its divisors is an integer number (573398784).

Almost surely, 2^7640394270 is an apocalyptic number.

7640394270 is an abundant number, since it is smaller than the sum of its proper divisors (10708366818).

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

7640394270 is a wasteful number, since it uses less digits than its factorization.

7640394270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164104.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 7640394270 is about 87409.3488707015. The cubic root of 7640394270 is about 1969.5722803885.

The spelling of 7640394270 in words is "seven billion, six hundred forty million, three hundred ninety-four thousand, two hundred seventy".