133642224438 has 32 divisors (see below), whose sum is σ = 276131496960. Its totient is φ = 43075243680.

The previous prime is 133642224383. The next prime is 133642224439. The reversal of 133642224438 is 834422246331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133642224438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133642224439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63720 + ... + 520907.

It is an arithmetic number, because the mean of its divisors is an integer number (8629109280).

Almost surely, 2^133642224438 is an apocalyptic number.

133642224438 is an abundant number, since it is smaller than the sum of its proper divisors (142489272522).

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

133642224438 is a wasteful number, since it uses less digits than its factorization.

133642224438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585892.

The product of its digits is 663552, while the sum is 42.

The spelling of 133642224438 in words is "one hundred thirty-three billion, six hundred forty-two million, two hundred twenty-four thousand, four hundred thirty-eight".