1814400078 has 16 divisors (see below), whose sum is σ = 3631264896. Its totient is φ = 604389240.

The previous prime is 1814400073. The next prime is 1814400083. The reversal of 1814400078 is 8700044181.

It is an interprime number because it is at equal distance from previous prime (1814400073) and next prime (1814400083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814400073) 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, 93058 + ... + 110853.

It is an arithmetic number, because the mean of its divisors is an integer number (226954056).

Almost surely, 2^1814400078 is an apocalyptic number.

1814400078 is an abundant number, since it is smaller than the sum of its proper divisors (1816864818).

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

1814400078 is a wasteful number, since it uses less digits than its factorization.

1814400078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205399.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 1814400078 is about 42595.7753539010. The cubic root of 1814400078 is about 1219.6756456555.

The spelling of 1814400078 in words is "one billion, eight hundred fourteen million, four hundred thousand, seventy-eight".