1170149840 has 80 divisors (see below), whose sum is σ = 2908313856. Its totient is φ = 436761600.

The previous prime is 1170149819. The next prime is 1170149861. The reversal of 1170149840 is 489410711.

It is an interprime number because it is at equal distance from previous prime (1170149819) and next prime (1170149861).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1170149840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67685 + ... + 83195.

Almost surely, 2^1170149840 is an apocalyptic number.

1170149840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1170149840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454156928).

1170149840 is an abundant number, since it is smaller than the sum of its proper divisors (1738164016).

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

1170149840 is a wasteful number, since it uses less digits than its factorization.

1170149840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588 (or 15582 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1170149840 is about 34207.4529890783. The cubic root of 1170149840 is about 1053.7732241978.

The spelling of 1170149840 in words is "one billion, one hundred seventy million, one hundred forty-nine thousand, eight hundred forty".