1140390426 has 24 divisors (see below), whose sum is σ = 2653153920. Its totient is φ = 325825752.

The previous prime is 1140390367. The next prime is 1140390443. The reversal of 1140390426 is 6240930411.

It is a super-2 number, since 2×1140390426² = 2600980647424922952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1140390393 and 1140390402.

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, 1939146 + ... + 1939733.

It is an arithmetic number, because the mean of its divisors is an integer number (110548080).

Almost surely, 2^1140390426 is an apocalyptic number.

1140390426 is an abundant number, since it is smaller than the sum of its proper divisors (1512763494).

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

1140390426 is a wasteful number, since it uses less digits than its factorization.

1140390426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878898 (or 3878891 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1140390426 is about 33769.6672473982. The cubic root of 1140390426 is about 1044.7631693948.

The spelling of 1140390426 in words is "one billion, one hundred forty million, three hundred ninety thousand, four hundred twenty-six".