1141400440 has 16 divisors (see below), whose sum is σ = 2568151080. Its totient is φ = 456560160.

The previous prime is 1141400423. The next prime is 1141400443. The reversal of 1141400440 is 440041411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141400443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14267466 + ... + 14267545.

Almost surely, 2^1141400440 is an apocalyptic number.

1141400440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141400440 is an abundant number, since it is smaller than the sum of its proper divisors (1426750640).

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

1141400440 is a wasteful number, since it uses less digits than its factorization.

1141400440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28535022 (or 28535018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1141400440 is about 33784.6183935826. The cubic root of 1141400440 is about 1045.0715181931.

Adding to 1141400440 its reverse (440041411), we get a palindrome (1581441851).

The spelling of 1141400440 in words is "one billion, one hundred forty-one million, four hundred thousand, four hundred forty".