133240740 has 48 divisors (see below), whose sum is σ = 374256960. Its totient is φ = 35418240.

The previous prime is 133240729. The next prime is 133240799. The reversal of 133240740 is 47042331.

It is a self number, because there is not a number n which added to its sum of digits gives 133240740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16506 + ... + 23214.

It is an arithmetic number, because the mean of its divisors is an integer number (7797020).

Almost surely, 2^133240740 is an apocalyptic number.

133240740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133240740 is an abundant number, since it is smaller than the sum of its proper divisors (241016220).

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

133240740 is a wasteful number, since it uses less digits than its factorization.

133240740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052 (or 7050 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 133240740 is about 11542.9952785228. The cubic root of 133240740 is about 510.7546689691.

The spelling of 133240740 in words is "one hundred thirty-three million, two hundred forty thousand, seven hundred forty".