78250130 has 32 divisors (see below), whose sum is σ = 162549504. Its totient is φ = 26565696.

The previous prime is 78250111. The next prime is 78250141. The reversal of 78250130 is 3105287.

It is a super-2 number, since 2×78250130² = 12246165690033800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78250130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (5079672).

Almost surely, 2^78250130 is an apocalyptic number.

78250130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78250130 is an abundant number, since it is smaller than the sum of its proper divisors (84299374).

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

78250130 is a wasteful number, since it uses less digits than its factorization.

78250130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 78250130 is about 8845.9103545085. The cubic root of 78250130 is about 427.7220988357.

The spelling of 78250130 in words is "seventy-eight million, two hundred fifty thousand, one hundred thirty".