1140235290 has 48 divisors (see below), whose sum is σ = 3044745288. Its totient is φ = 295843968.

The previous prime is 1140235267. The next prime is 1140235309. The reversal of 1140235290 is 925320411.

1140235290 is a `hidden beast` number, since 1 + 140 + 235 + 290 = 666.

1140235290 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1122317001 + 17918289 = 33501^2 + 4233^2 .

It is a super-2 number, since 2×1140235290² = 2600273033122768200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167877 + ... + 174536.

Almost surely, 2^1140235290 is an apocalyptic number.

1140235290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1140235290 is an abundant number, since it is smaller than the sum of its proper divisors (1904509998).

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

1140235290 is a wasteful number, since it uses less digits than its factorization.

1140235290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342463 (or 342460 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1140235290 is about 33767.3701966854. The cubic root of 1140235290 is about 1044.7157915478.

The spelling of 1140235290 in words is "one billion, one hundred forty million, two hundred thirty-five thousand, two hundred ninety".