1140400 has 30 divisors (see below), whose sum is σ = 2740772. Its totient is φ = 456000.

The previous prime is 1140389. The next prime is 1140413. The reversal of 1140400 is 40411.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026 + ... + 1825.

2^1140400 is an apocalyptic number.

1140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140400 is an abundant number, since it is smaller than the sum of its proper divisors (1600372).

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

1140400 is a wasteful number, since it uses less digits than its factorization.

1140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869 (or 2858 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1140400 is about 1067.8951259370. The cubic root of 1140400 is about 104.4766093111.

Adding to 1140400 its reverse (40411), we get a palindrome (1180811).

It can be divided in two parts, 1140 and 400, that added together give a triangular number (1540 = T₅₅).

The spelling of 1140400 in words is "one million, one hundred forty thousand, four hundred".