1173421560 has 64 divisors (see below), whose sum is σ = 3527971200. Its totient is φ = 312227456.

The previous prime is 1173421541. The next prime is 1173421573. The reversal of 1173421560 is 651243711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45571 + ... + 66509.

It is an arithmetic number, because the mean of its divisors is an integer number (55124550).

Almost surely, 2^1173421560 is an apocalyptic number.

1173421560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173421560 is an abundant number, since it is smaller than the sum of its proper divisors (2354549640).

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

1173421560 is a wasteful number, since it uses less digits than its factorization.

1173421560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420 (or 21416 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1173421560 is about 34255.2413507773. The cubic root of 1173421560 is about 1054.7544212505.

The spelling of 1173421560 in words is "one billion, one hundred seventy-three million, four hundred twenty-one thousand, five hundred sixty".