1140202044 has 36 divisors (see below), whose sum is σ = 2883296416. Its totient is φ = 379919808.

The previous prime is 1140202033. The next prime is 1140202073. The reversal of 1140202044 is 4402020411.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1140202044² = 2600121402283555872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 127917 + ... + 136539.

Almost surely, 2^1140202044 is an apocalyptic number.

It is an amenable number.

1140202044 is an abundant number, since it is smaller than the sum of its proper divisors (1743094372).

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

1140202044 is a wasteful number, since it uses less digits than its factorization.

1140202044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12306 (or 12301 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1140202044 is about 33766.8779131266. The cubic root of 1140202044 is about 1044.7056378076.

Adding to 1140202044 its reverse (4402020411), we get a palindrome (5542222455).

The spelling of 1140202044 in words is "one billion, one hundred forty million, two hundred two thousand, forty-four".