120400078 has 8 divisors (see below), whose sum is σ = 188452368. Its totient is φ = 57582624.

The previous prime is 120400073. The next prime is 120400079. The reversal of 120400078 is 870004021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120400073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308651 + ... + 1308742.

It is an arithmetic number, because the mean of its divisors is an integer number (23556546).

Almost surely, 2^120400078 is an apocalyptic number.

120400078 is a deficient number, since it is larger than the sum of its proper divisors (68052290).

120400078 is a wasteful number, since it uses less digits than its factorization.

120400078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617418.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 120400078 is about 10972.6969337533. The cubic root of 120400078 is about 493.7899608100.

Adding to 120400078 its reverse (870004021), we get a palindrome (990404099).

The spelling of 120400078 in words is "one hundred twenty million, four hundred thousand, seventy-eight".