33240628 has 6 divisors (see below), whose sum is σ = 58171106. Its totient is φ = 16620312.

The previous prime is 33240617. The next prime is 33240629. The reversal of 33240628 is 82604233.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 1227664 = 5658^2 + 1108^2 .

It is a super-2 number, since 2×33240628² = 2209878699668768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240596 and 33240605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4155075 + ... + 4155082.

Almost surely, 2^33240628 is an apocalyptic number.

It is an amenable number.

33240628 is a deficient number, since it is larger than the sum of its proper divisors (24930478).

33240628 is a wasteful number, since it uses less digits than its factorization.

33240628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310161 (or 8310159 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 33240628 is about 5765.4685845992. The cubic root of 33240628 is about 321.5311644668.

The spelling of 33240628 in words is "thirty-three million, two hundred forty thousand, six hundred twenty-eight".