1490340186 has 24 divisors (see below), whose sum is σ = 3229790304. Its totient is φ = 496669320.

The previous prime is 1490340169. The next prime is 1490340193. The reversal of 1490340186 is 6810430941.

It is a super-2 number, since 2×1490340186² = 4442227740013029192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1490340186.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132981 + ... + 143751.

It is an arithmetic number, because the mean of its divisors is an integer number (134574596).

Almost surely, 2^1490340186 is an apocalyptic number.

1490340186 is an abundant number, since it is smaller than the sum of its proper divisors (1739450118).

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

1490340186 is a wasteful number, since it uses less digits than its factorization.

1490340186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18466 (or 18463 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1490340186 is about 38604.9243750069. The cubic root of 1490340186 is about 1142.2516761640.

The spelling of 1490340186 in words is "one billion, four hundred ninety million, three hundred forty thousand, one hundred eighty-six".