33742506 has 16 divisors (see below), whose sum is σ = 77125824. Its totient is φ = 9640704.

The previous prime is 33742453. The next prime is 33742507. The reversal of 33742506 is 60524733.

It is a super-2 number, since 2×33742506² = 2277113422320072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33742507) 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, 401655 + ... + 401738.

It is an arithmetic number, because the mean of its divisors is an integer number (4820364).

Almost surely, 2^33742506 is an apocalyptic number.

33742506 is an abundant number, since it is smaller than the sum of its proper divisors (43383318).

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

33742506 is a wasteful number, since it uses less digits than its factorization.

33742506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803405.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 33742506 is about 5808.8300026770. The cubic root of 33742506 is about 323.1412827215.

The spelling of 33742506 in words is "thirty-three million, seven hundred forty-two thousand, five hundred six".