1172401478 has 16 divisors (see below), whose sum is σ = 1809256176. Its totient is φ = 569439360.

The previous prime is 1172401469. The next prime is 1172401501. The reversal of 1172401478 is 8741042711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11576 + ... + 49787.

It is an arithmetic number, because the mean of its divisors is an integer number (113078511).

Almost surely, 2^1172401478 is an apocalyptic number.

1172401478 is a deficient number, since it is larger than the sum of its proper divisors (636854698).

1172401478 is a wasteful number, since it uses less digits than its factorization.

1172401478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61639.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 1172401478 is about 34240.3486839722. The cubic root of 1172401478 is about 1054.4486919868.

The spelling of 1172401478 in words is "one billion, one hundred seventy-two million, four hundred one thousand, four hundred seventy-eight".