427600720340 has 12 divisors (see below), whose sum is σ = 897961512756. Its totient is φ = 171040288128.

The previous prime is 427600720331. The next prime is 427600720373. The reversal of 427600720340 is 43027006724.

It can be written as a sum of positive squares in 2 ways, for example, as 135120937744 + 292479782596 = 367588^2 + 540814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 427600720340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10690017989 + ... + 10690018028.

It is an arithmetic number, because the mean of its divisors is an integer number (74830126063).

Almost surely, 2^427600720340 is an apocalyptic number.

It is an amenable number.

427600720340 is an abundant number, since it is smaller than the sum of its proper divisors (470360792416).

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

427600720340 is a wasteful number, since it uses less digits than its factorization.

427600720340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21380036026 (or 21380036024 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 427600720340 in words is "four hundred twenty-seven billion, six hundred million, seven hundred twenty thousand, three hundred forty".