1430720720730 has 96 divisors (see below), whose sum is σ = 4305098304000. Its totient is φ = 322882350336.

The previous prime is 1430720720713. The next prime is 1430720720843. The reversal of 1430720720730 is 370270270341.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14323555 + ... + 14423094.

It is an arithmetic number, because the mean of its divisors is an integer number (44844774000).

Almost surely, 2^{1430720720730} is an apocalyptic number.

1430720720730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1430720720730 is an abundant number, since it is smaller than the sum of its proper divisors (2874377583270).

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

1430720720730 is a wasteful number, since it uses less digits than its factorization.

1430720720730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28746748 (or 28746745 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 1430720720730 in words is "one trillion, four hundred thirty billion, seven hundred twenty million, seven hundred twenty thousand, seven hundred thirty".