1081423618 has 32 divisors (see below), whose sum is σ = 1881154368. Its totient is φ = 460800000.

The previous prime is 1081423597. The next prime is 1081423631. The reversal of 1081423618 is 8163241801.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 90493 + ... + 101743.

It is an arithmetic number, because the mean of its divisors is an integer number (58786074).

Almost surely, 2^1081423618 is an apocalyptic number.

1081423618 is a deficient number, since it is larger than the sum of its proper divisors (799730750).

1081423618 is a wasteful number, since it uses less digits than its factorization.

1081423618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1081423618 is about 32885.0059753682. The cubic root of 1081423618 is about 1026.4361760975.

The spelling of 1081423618 in words is "one billion, eighty-one million, four hundred twenty-three thousand, six hundred eighteen".