133433740 has 48 divisors (see below), whose sum is σ = 306470304. Its totient is φ = 48396800.

The previous prime is 133433723. The next prime is 133433749. The reversal of 133433740 is 47334331.

It is a junction number, because it is equal to n+sod(n) for n = 133433699 and 133433708.

It is not an unprimeable number, because it can be changed into a prime (133433749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167022 + ... + 167818.

It is an arithmetic number, because the mean of its divisors is an integer number (6384798).

Almost surely, 2^133433740 is an apocalyptic number.

133433740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133433740 is an abundant number, since it is smaller than the sum of its proper divisors (173036564).

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

133433740 is a wasteful number, since it uses less digits than its factorization.

133433740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 133433740 is about 11551.3523017870. The cubic root of 133433740 is about 511.0011603790.

The spelling of 133433740 in words is "one hundred thirty-three million, four hundred thirty-three thousand, seven hundred forty".