1171498240 has 72 divisors (see below), whose sum is σ = 3061241568. Its totient is φ = 425994240.

The previous prime is 1171498231. The next prime is 1171498243. The reversal of 1171498240 is 428941711.

It is a self number, because there is not a number n which added to its sum of digits gives 1171498240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171498243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27522 + ... + 55681.

It is an arithmetic number, because the mean of its divisors is an integer number (42517244).

Almost surely, 2^1171498240 is an apocalyptic number.

1171498240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171498240 is an abundant number, since it is smaller than the sum of its proper divisors (1889743328).

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

1171498240 is an equidigital number, since it uses as much as digits as its factorization.

1171498240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83235 (or 83221 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1171498240 is about 34227.1564696806. The cubic root of 1171498240 is about 1054.1778340265.

The spelling of 1171498240 in words is "one billion, one hundred seventy-one million, four hundred ninety-eight thousand, two hundred forty".