1140242100 has 36 divisors (see below), whose sum is σ = 3299101344. Its totient is φ = 304064480.

The previous prime is 1140242087. The next prime is 1140242141. The reversal of 1140242100 is 12420411.

It is a super-2 number, since 2×1140242100² = 2600304093224820000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1140242100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1900104 + ... + 1900703.

It is an arithmetic number, because the mean of its divisors is an integer number (91641704).

Almost surely, 2^1140242100 is an apocalyptic number.

1140242100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140242100 is an abundant number, since it is smaller than the sum of its proper divisors (2158859244).

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

1140242100 is a wasteful number, since it uses less digits than its factorization.

1140242100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800824 (or 3800817 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1140242100 is about 33767.4710335257. The cubic root of 1140242100 is about 1044.7178713818.

Adding to 1140242100 its reverse (12420411), we get a palindrome (1152662511).

The spelling of 1140242100 in words is "one billion, one hundred forty million, two hundred forty-two thousand, one hundred".