78040486 has 16 divisors (see below), whose sum is σ = 125550000. Its totient is φ = 36268128.

The previous prime is 78040483. The next prime is 78040513. The reversal of 78040486 is 68404087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78040481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17361 + ... + 21388.

It is an arithmetic number, because the mean of its divisors is an integer number (7846875).

Almost surely, 2^78040486 is an apocalyptic number.

78040486 is a deficient number, since it is larger than the sum of its proper divisors (47509514).

78040486 is a wasteful number, since it uses less digits than its factorization.

78040486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38823.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 78040486 is about 8834.0526373800. The cubic root of 78040486 is about 427.3397796822.

The spelling of 78040486 in words is "seventy-eight million, forty thousand, four hundred eighty-six".