133234398 has 24 divisors (see below), whose sum is σ = 314918136. Its totient is φ = 40374000.

The previous prime is 133234357. The next prime is 133234427. The reversal of 133234398 is 893432331.

133234398 is a `hidden beast` number, since 1 + 33 + 234 + 398 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336253 + ... + 336648.

It is an arithmetic number, because the mean of its divisors is an integer number (13121589).

Almost surely, 2^133234398 is an apocalyptic number.

133234398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

133234398 is an abundant number, since it is smaller than the sum of its proper divisors (181683738).

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

133234398 is a wasteful number, since it uses less digits than its factorization.

133234398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672920 (or 672917 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 133234398 is about 11542.7205631948. The cubic root of 133234398 is about 510.7465651976.

The spelling of 133234398 in words is "one hundred thirty-three million, two hundred thirty-four thousand, three hundred ninety-eight".