133398402 has 16 divisors (see below), whose sum is σ = 266911392. Its totient is φ = 44447040.

The previous prime is 133398401. The next prime is 133398443. The reversal of 133398402 is 204893331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133398401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21402 + ... + 26922.

It is an arithmetic number, because the mean of its divisors is an integer number (16681962).

Almost surely, 2^133398402 is an apocalyptic number.

133398402 is an abundant number, since it is smaller than the sum of its proper divisors (133512990).

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

133398402 is a wasteful number, since it uses less digits than its factorization.

133398402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9553.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 133398402 is about 11549.8225960402. The cubic root of 133398402 is about 510.9560459690.

The spelling of 133398402 in words is "one hundred thirty-three million, three hundred ninety-eight thousand, four hundred two".