1018019340 has 336 divisors, whose sum is σ = 3563040096. Its totient is φ = 242611200.

The previous prime is 1018019339. The next prime is 1018019351. The reversal of 1018019340 is 439108101.

It is a super-2 number, since 2×1018019340² = 2072726753228071200, which contains 22 as substring.

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

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 7771075 + ... + 7771205.

It is an arithmetic number, because the mean of its divisors is an integer number (10604286).

Almost surely, 2^1018019340 is an apocalyptic number.

1018019340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018019340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781520048).

1018019340 is an abundant number, since it is smaller than the sum of its proper divisors (2545020756).

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

1018019340 is a wasteful number, since it uses less digits than its factorization.

1018019340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 195 counting only the distinct ones).

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

The square root of 1018019340 is about 31906.4153423728. The cubic root of 1018019340 is about 1005.9707261447.

The spelling of 1018019340 in words is "one billion, eighteen million, nineteen thousand, three hundred forty".