1187381470 has 48 divisors (see below), whose sum is σ = 2387909664. Its totient is φ = 424670400.

The previous prime is 1187381381. The next prime is 1187381471. The reversal of 1187381470 is 741837811.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187381471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65767 + ... + 81853.

It is an arithmetic number, because the mean of its divisors is an integer number (49748118).

Almost surely, 2^1187381470 is an apocalyptic number.

1187381470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1187381470 is an abundant number, since it is smaller than the sum of its proper divisors (1200528194).

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

1187381470 is a wasteful number, since it uses less digits than its factorization.

1187381470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16177 (or 16166 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 1187381470 is about 34458.4020233092. The cubic root of 1187381470 is about 1058.9206617567.

The spelling of 1187381470 in words is "one billion, one hundred eighty-seven million, three hundred eighty-one thousand, four hundred seventy".