1140204400 has 30 divisors (see below), whose sum is σ = 2739342032. Its totient is φ = 456081600.

The previous prime is 1140204391. The next prime is 1140204409. The reversal of 1140204400 is 44020411.

It is an interprime number because it is at equal distance from previous prime (1140204391) and next prime (1140204409).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140204409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424856 + ... + 1425655.

Almost surely, 2^1140204400 is an apocalyptic number.

1140204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140204400 is an abundant number, since it is smaller than the sum of its proper divisors (1599137632).

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

1140204400 is a wasteful number, since it uses less digits than its factorization.

1140204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850529 (or 2850518 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1140204400 is about 33766.9127993662. The cubic root of 1140204400 is about 1044.7063573657.

Adding to 1140204400 its reverse (44020411), we get a palindrome (1184224811).

The spelling of 1140204400 in words is "one billion, one hundred forty million, two hundred four thousand, four hundred".