1198287456 has 48 divisors (see below), whose sum is σ = 3180870000. Its totient is φ = 394938368.

The previous prime is 1198287451. The next prime is 1198287469. The reversal of 1198287456 is 6547828911.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1198287399 and 1198287408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198287451) 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, 61581 + ... + 78668.

It is an arithmetic number, because the mean of its divisors is an integer number (66268125).

Almost surely, 2^1198287456 is an apocalyptic number.

1198287456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1198287456 is an abundant number, since it is smaller than the sum of its proper divisors (1982582544).

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

1198287456 is a wasteful number, since it uses less digits than its factorization.

1198287456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140351 (or 140343 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The square root of 1198287456 is about 34616.2888825478. The cubic root of 1198287456 is about 1062.1528147498.

The spelling of 1198287456 in words is "one billion, one hundred ninety-eight million, two hundred eighty-seven thousand, four hundred fifty-six".