1198499340 has 48 divisors (see below), whose sum is σ = 3367703808. Its totient is φ = 318465984.

The previous prime is 1198499329. The next prime is 1198499359. The reversal of 1198499340 is 439948911.

1198499340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1198499340³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1198499340.

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, 18312 + ... + 52271.

It is an arithmetic number, because the mean of its divisors is an integer number (70160496).

Almost surely, 2^1198499340 is an apocalyptic number.

1198499340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198499340 is an abundant number, since it is smaller than the sum of its proper divisors (2169204468).

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

1198499340 is a wasteful number, since it uses less digits than its factorization.

1198499340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70878 (or 70876 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1198499340 is about 34619.3492139873. The cubic root of 1198499340 is about 1062.2154151779.

The spelling of 1198499340 in words is "one billion, one hundred ninety-eight million, four hundred ninety-nine thousand, three hundred forty".