1420439679684 has 27 divisors (see below), whose sum is σ = 3590573933037. Its totient is φ = 473477509584.

The previous prime is 1420439679667. The next prime is 1420439679707. The reversal of 1420439679684 is 4869769340241.

It is a happy number.

The square root of 1420439679684 is 1191822.

It is a perfect power (a square), and thus also a powerful number.

1420439679684 is a `hidden beast` number, since 1 + 420 + 43 + 9 + 6 + 7 + 96 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 971979092100 + 448460587584 = 985890^2 + 669672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7051614 + ... + 7250250.

Almost surely, 2^{1420439679684} is an apocalyptic number.

1420439679684 is the 1191822-nd square number.

It is an amenable number.

1420439679684 is an abundant number, since it is smaller than the sum of its proper divisors (2170134253353).

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

1420439679684 is an frugal number, since it uses more digits than its factorization.

1420439679684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397284 (or 198642 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 1420439679684 in words is "one trillion, four hundred twenty billion, four hundred thirty-nine million, six hundred seventy-nine thousand, six hundred eighty-four".