33772142 has 8 divisors (see below), whose sum is σ = 52860816. Its totient is φ = 16151872.

The previous prime is 33772121. The next prime is 33772147. The reversal of 33772142 is 24127733.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33772142² = 2281115150536328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33772147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367043 + ... + 367134.

It is an arithmetic number, because the mean of its divisors is an integer number (6607602).

Almost surely, 2^33772142 is an apocalyptic number.

33772142 is a deficient number, since it is larger than the sum of its proper divisors (19088674).

33772142 is a wasteful number, since it uses less digits than its factorization.

33772142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734202.

The product of its digits is 7056, while the sum is 29.

The square root of 33772142 is about 5811.3803867928. The cubic root of 33772142 is about 323.2358598968.

Adding to 33772142 its reverse (24127733), we get a palindrome (57899875).

The spelling of 33772142 in words is "thirty-three million, seven hundred seventy-two thousand, one hundred forty-two".