133649404 has 24 divisors (see below), whose sum is σ = 267589728. Its totient is φ = 57216000.

The previous prime is 133649377. The next prime is 133649447. The reversal of 133649404 is 404946331.

It is a self number, because there is not a number n which added to its sum of digits gives 133649404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31404 + ... + 35404.

It is an arithmetic number, because the mean of its divisors is an integer number (11149572).

Almost surely, 2^133649404 is an apocalyptic number.

133649404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133649404 is an abundant number, since it is smaller than the sum of its proper divisors (133940324).

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

133649404 is a wasteful number, since it uses less digits than its factorization.

133649404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205 (or 5203 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 133649404 is about 11560.6835438048. The cubic root of 133649404 is about 511.2763162586.

The spelling of 133649404 in words is "one hundred thirty-three million, six hundred forty-nine thousand, four hundred four".