1087657420 has 12 divisors (see below), whose sum is σ = 2284080624. Its totient is φ = 435062960.

The previous prime is 1087657391. The next prime is 1087657421. The reversal of 1087657420 is 247567801.

It is not an unprimeable number, because it can be changed into a prime (1087657421) 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 3 ways as a sum of consecutive naturals, for example, 27191416 + ... + 27191455.

It is an arithmetic number, because the mean of its divisors is an integer number (190340052).

Almost surely, 2^1087657420 is an apocalyptic number.

1087657420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087657420 is an abundant number, since it is smaller than the sum of its proper divisors (1196423204).

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

1087657420 is a wasteful number, since it uses less digits than its factorization.

1087657420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54382880 (or 54382878 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1087657420 is about 32979.6516051944. The cubic root of 1087657420 is about 1028.4046752195.

The spelling of 1087657420 in words is "one billion, eighty-seven million, six hundred fifty-seven thousand, four hundred twenty".