1140890400 has 576 divisors, whose sum is σ = 4724697600. Its totient is φ = 263208960.

The previous prime is 1140890369. The next prime is 1140890407. The reversal of 1140890400 is 40980411.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1140890407) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4773481 + ... + 4773719.

It is an arithmetic number, because the mean of its divisors is an integer number (8202600).

Almost surely, 2^1140890400 is an apocalyptic number.

1140890400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140890400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2362348800).

1140890400 is an abundant number, since it is smaller than the sum of its proper divisors (3583807200).

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

1140890400 is a wasteful number, since it uses less digits than its factorization.

1140890400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1140890400 is about 33777.0691446135. The cubic root of 1140890400 is about 1044.9158300071.

The spelling of 1140890400 in words is "one billion, one hundred forty million, eight hundred ninety thousand, four hundred".