230978407 has 16 divisors (see below), whose sum is σ = 258474240. Its totient is φ = 204635200.

The previous prime is 230978387. The next prime is 230978411. The reversal of 230978407 is 704879032.

It is a de Polignac number, because none of the positive numbers 2^k-230978407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230978407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230970407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67848 + ... + 71170.

It is an arithmetic number, because the mean of its divisors is an integer number (16154640).

Almost surely, 2^230978407 is an apocalyptic number.

230978407 is a deficient number, since it is larger than the sum of its proper divisors (27495833).

230978407 is a wasteful number, since it uses less digits than its factorization.

230978407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 230978407 is about 15197.9737794220. The cubic root of 230978407 is about 613.5601250204.

The spelling of 230978407 in words is "two hundred thirty million, nine hundred seventy-eight thousand, four hundred seven".