1018022490 has 24 divisors (see below), whose sum is σ = 2646858708. Its totient is φ = 271472640.

The previous prime is 1018022483. The next prime is 1018022501. The reversal of 1018022490 is 942208101.

It can be written as a sum of positive squares in 2 ways, for example, as 989794521 + 28227969 = 31461^2 + 5313^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5655591 + ... + 5655770.

Almost surely, 2^1018022490 is an apocalyptic number.

1018022490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1018022490 is an abundant number, since it is smaller than the sum of its proper divisors (1628836218).

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

1018022490 is a wasteful number, since it uses less digits than its factorization.

1018022490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11311374 (or 11311371 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1018022490 is about 31906.4647054480. The cubic root of 1018022490 is about 1005.9717637165.

The spelling of 1018022490 in words is "one billion, eighteen million, twenty-two thousand, four hundred ninety".