1940022508 has 6 divisors (see below), whose sum is σ = 3395039396. Its totient is φ = 970011252.

The previous prime is 1940022463. The next prime is 1940022509. The reversal of 1940022508 is 8052200491.

It is a super-2 number, since 2×1940022508² = 7527374663093220128, 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 1940022508.

It is not an unprimeable number, because it can be changed into a prime (1940022509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242502810 + ... + 242502817.

Almost surely, 2^1940022508 is an apocalyptic number.

It is an amenable number.

1940022508 is a deficient number, since it is larger than the sum of its proper divisors (1455016888).

1940022508 is a wasteful number, since it uses less digits than its factorization.

1940022508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485005631 (or 485005629 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1940022508 is about 44045.6865992574. The cubic root of 1940022508 is about 1247.1985278000.

Adding to 1940022508 its reverse (8052200491), we get a palindrome (9992222999).

The spelling of 1940022508 in words is "one billion, nine hundred forty million, twenty-two thousand, five hundred eight".