133420344 has 16 divisors (see below), whose sum is σ = 333550920. Its totient is φ = 44473440.

The previous prime is 133420283. The next prime is 133420351. The reversal of 133420344 is 443024331.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5559181 = 133420344 / (1 + 3 + 3 + 4 + 2 + 0 + 3 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2779567 + ... + 2779614.

Almost surely, 2^133420344 is an apocalyptic number.

It is an amenable number.

133420344 is an abundant number, since it is smaller than the sum of its proper divisors (200130576).

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

133420344 is a wasteful number, since it uses less digits than its factorization.

133420344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559190 (or 5559186 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 133420344 is about 11550.7724417028. The cubic root of 133420344 is about 510.9840592554.

Adding to 133420344 its reverse (443024331), we get a palindrome (576444675).

The spelling of 133420344 in words is "one hundred thirty-three million, four hundred twenty thousand, three hundred forty-four".