780430140 has 120 divisors (see below), whose sum is σ = 2798027232. Its totient is φ = 178381440.

The previous prime is 780430109. The next prime is 780430171. The reversal of 780430140 is 41034087.

780430140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (780430109) and next prime (780430171).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23071 + ... + 45750.

Almost surely, 2^780430140 is an apocalyptic number.

780430140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

780430140 is an abundant number, since it is smaller than the sum of its proper divisors (2017597092).

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

780430140 is a wasteful number, since it uses less digits than its factorization.

780430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68849 (or 68838 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 780430140 is about 27936.1797674628. The cubic root of 780430140 is about 920.6855869551.

The spelling of 780430140 in words is "seven hundred eighty million, four hundred thirty thousand, one hundred forty".