33145748 has 6 divisors (see below), whose sum is σ = 58005066. Its totient is φ = 16572872.

The previous prime is 33145741. The next prime is 33145757. The reversal of 33145748 is 84754133.

It can be written as a sum of positive squares in only one way, i.e., 30780304 + 2365444 = 5548^2 + 1538^2 .

It is a super-2 number, since 2×33145748² = 2197281220959008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4143215 + ... + 4143222.

It is an arithmetic number, because the mean of its divisors is an integer number (9667511).

Almost surely, 2^33145748 is an apocalyptic number.

It is an amenable number.

33145748 is a deficient number, since it is larger than the sum of its proper divisors (24859318).

33145748 is a wasteful number, since it uses less digits than its factorization.

33145748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286441 (or 8286439 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 33145748 is about 5757.2344055110. The cubic root of 33145748 is about 321.2249533582.

The spelling of 33145748 in words is "thirty-three million, one hundred forty-five thousand, seven hundred forty-eight".