1133440421 has 8 divisors (see below), whose sum is σ = 1193976000. Its totient is φ = 1072992960.

The previous prime is 1133440417. The next prime is 1133440423. The reversal of 1133440421 is 1240443311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1133440421 - 2² = 1133440417 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133440423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5261 + ... + 47901.

It is an arithmetic number, because the mean of its divisors is an integer number (149247000).

Almost surely, 2^1133440421 is an apocalyptic number.

It is an amenable number.

1133440421 is a deficient number, since it is larger than the sum of its proper divisors (60535579).

1133440421 is a wasteful number, since it uses less digits than its factorization.

1133440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44059.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1133440421 is about 33666.6069124882. The cubic root of 1133440421 is about 1042.6364386561.

Adding to 1133440421 its reverse (1240443311), we get a palindrome (2373883732).

The spelling of 1133440421 in words is "one billion, one hundred thirty-three million, four hundred forty thousand, four hundred twenty-one".