1187093220 has 48 divisors (see below), whose sum is σ = 3334601088. Its totient is φ = 315535360.

The previous prime is 1187093209. The next prime is 1187093249. The reversal of 1187093220 is 223907811.

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, 13149 + ... + 50468.

It is an arithmetic number, because the mean of its divisors is an integer number (69470856).

Almost surely, 2^1187093220 is an apocalyptic number.

1187093220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1187093220 is an abundant number, since it is smaller than the sum of its proper divisors (2147507868).

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

1187093220 is a wasteful number, since it uses less digits than its factorization.

1187093220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63940 (or 63938 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1187093220 is about 34454.2191901079. The cubic root of 1187093220 is about 1058.8349665831.

The spelling of 1187093220 in words is "one billion, one hundred eighty-seven million, ninety-three thousand, two hundred twenty".