78269230 has 32 divisors (see below), whose sum is σ = 158324544. Its totient is φ = 27641856.

The previous prime is 78269221. The next prime is 78269237. The reversal of 78269230 is 3296287.

It is a super-2 number, since 2×78269230² = 12252144729585800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78269230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78269237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10099 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (4947642).

Almost surely, 2^78269230 is an apocalyptic number.

78269230 is an abundant number, since it is smaller than the sum of its proper divisors (80055314).

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

78269230 is a wasteful number, since it uses less digits than its factorization.

78269230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26220.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 78269230 is about 8846.9898835706. The cubic root of 78269230 is about 427.7568967650.

The spelling of 78269230 in words is "seventy-eight million, two hundred sixty-nine thousand, two hundred thirty".