1018390104 has 64 divisors (see below), whose sum is σ = 2845317600. Its totient is φ = 337488768.

The previous prime is 1018390097. The next prime is 1018390147. The reversal of 1018390104 is 4010938101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 23742 + ... + 50994.

Almost surely, 2^1018390104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018390104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422658800).

1018390104 is an abundant number, since it is smaller than the sum of its proper divisors (1826927496).

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

1018390104 is a wasteful number, since it uses less digits than its factorization.

1018390104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27441 (or 27431 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1018390104 is about 31912.2249929396. The cubic root of 1018390104 is about 1006.0928366146.

The spelling of 1018390104 in words is "one billion, eighteen million, three hundred ninety thousand, one hundred four".