133330442 has 64 divisors (see below), whose sum is σ = 247726080. Its totient is φ = 52617600.

The previous prime is 133330423. The next prime is 133330451. The reversal of 133330442 is 244033331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049783 + ... + 1049909.

It is an arithmetic number, because the mean of its divisors is an integer number (3870720).

Almost surely, 2^133330442 is an apocalyptic number.

133330442 is a deficient number, since it is larger than the sum of its proper divisors (114395638).

133330442 is a wasteful number, since it uses less digits than its factorization.

133330442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 133330442 is about 11546.8801847079. The cubic root of 133330442 is about 510.8692621423.

Adding to 133330442 its reverse (244033331), we get a palindrome (377363773).

The spelling of 133330442 in words is "one hundred thirty-three million, three hundred thirty thousand, four hundred forty-two".