393361072740 has 60 divisors (see below), whose sum is σ = 1233988259196. Its totient is φ = 104896285632.

The previous prime is 393361072733. The next prime is 393361072781. The reversal of 393361072740 is 47270163393.

It is a happy number.

393361072740 is a `hidden beast` number, since 3 + 9 + 3 + 3 + 610 + 7 + 27 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46741575204 + 346619497536 = 216198^2 + 588744^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×393361072740² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 121406119 + ... + 121409358.

Almost surely, 2^393361072740 is an apocalyptic number.

393361072740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

393361072740 is an abundant number, since it is smaller than the sum of its proper divisors (840627186456).

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

393361072740 is a wasteful number, since it uses less digits than its factorization.

393361072740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242815498 (or 242815487 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 393361072740 in words is "three hundred ninety-three billion, three hundred sixty-one million, seventy-two thousand, seven hundred forty".