1194949980 has 144 divisors (see below), whose sum is σ = 4152517824. Its totient is φ = 272471040.

The previous prime is 1194949979. The next prime is 1194949991. The reversal of 1194949980 is 899494911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680784 + ... + 682536.

Almost surely, 2^1194949980 is an apocalyptic number.

1194949980 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 1194949980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2076258912).

1194949980 is an abundant number, since it is smaller than the sum of its proper divisors (2957567844).

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

1194949980 is a wasteful number, since it uses less digits than its factorization.

1194949980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2311 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 1194949980 is about 34568.0485419701. The cubic root of 1194949980 is about 1061.1657934494.

The spelling of 1194949980 in words is "one billion, one hundred ninety-four million, nine hundred forty-nine thousand, nine hundred eighty".