133444470 has 16 divisors (see below), whose sum is σ = 320266800. Its totient is φ = 35585184.

The previous prime is 133444469. The next prime is 133444501. The reversal of 133444470 is 74444331.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4448149 = 133444470 / (1 + 3 + 3 + 4 + 4 + 4 + 4 + 7 + 0).

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 7 ways as a sum of consecutive naturals, for example, 2224045 + ... + 2224104.

It is an arithmetic number, because the mean of its divisors is an integer number (20016675).

Almost surely, 2^133444470 is an apocalyptic number.

133444470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133444470 is an abundant number, since it is smaller than the sum of its proper divisors (186822330).

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

133444470 is a wasteful number, since it uses less digits than its factorization.

133444470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448159.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 133444470 is about 11551.8167402361. The cubic root of 133444470 is about 511.0148573032.

The spelling of 133444470 in words is "one hundred thirty-three million, four hundred forty-four thousand, four hundred seventy".