78040414 has 4 divisors (see below), whose sum is σ = 117060624. Its totient is φ = 39020206.

The previous prime is 78040409. The next prime is 78040439. The reversal of 78040414 is 41404087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41404087 = 421 ⋅98347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19510102 + ... + 19510105.

It is an arithmetic number, because the mean of its divisors is an integer number (29265156).

Almost surely, 2^78040414 is an apocalyptic number.

78040414 is a deficient number, since it is larger than the sum of its proper divisors (39020210).

78040414 is a wasteful number, since it uses less digits than its factorization.

78040414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39020209.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 78040414 is about 8834.0485622392. The cubic root of 78040414 is about 427.3396482612.

The spelling of 78040414 in words is "seventy-eight million, forty thousand, four hundred fourteen".