1197428004 has 36 divisors (see below), whose sum is σ = 3053628396. Its totient is φ = 395609088.

The previous prime is 1197427999. The next prime is 1197428027. The reversal of 1197428004 is 4008247911.

It can be written as a sum of positive squares in 2 ways, for example, as 24502500 + 1172925504 = 4950^2 + 34248^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1197428004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143109 + ... + 151244.

It is an arithmetic number, because the mean of its divisors is an integer number (84823011).

Almost surely, 2^1197428004 is an apocalyptic number.

It is an amenable number.

1197428004 is an abundant number, since it is smaller than the sum of its proper divisors (1856200392).

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

1197428004 is a wasteful number, since it uses less digits than its factorization.

1197428004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294476 (or 294471 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1197428004 is about 34603.8726734451. The cubic root of 1197428004 is about 1061.8988167934.

It can be divided in two parts, 1197 and 428004, that added together give a triangular number (429201 = T₉₂₆).

The spelling of 1197428004 in words is "one billion, one hundred ninety-seven million, four hundred twenty-eight thousand, four".