7274442393 has 6 divisors (see below), whose sum is σ = 10507527914. Its totient is φ = 4849628256.

The previous prime is 7274442367. The next prime is 7274442407. The reversal of 7274442393 is 3932444727.

7274442393 is a `hidden beast` number, since 72 + 74 + 4 + 423 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4688414784 + 2586027609 = 68472^2 + 50853^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7274442393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7274442193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404135680 + ... + 404135697.

Almost surely, 2^7274442393 is an apocalyptic number.

It is an amenable number.

7274442393 is a deficient number, since it is larger than the sum of its proper divisors (3233085521).

7274442393 is a wasteful number, since it uses less digits than its factorization.

7274442393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808271383 (or 808271380 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 7274442393 is about 85290.3417333991. The cubic root of 7274442393 is about 1937.6109033319.

The spelling of 7274442393 in words is "seven billion, two hundred seventy-four million, four hundred forty-two thousand, three hundred ninety-three".