33057412 has 6 divisors (see below), whose sum is σ = 57850478.
Its totient is φ = 16528704.
The previous prime is 33057407. The next prime is 33057413. The reversal of 33057412 is 21475033.
It can be written as a sum of positive squares in only one way, i.e., 22714756 + 10342656 = 4766^2 + 3216^2
It is not an unprimeable number, because it can be changed into a prime (33057413) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4132173 + ... + 4132180.
Almost surely, 233057412 is an apocalyptic number.
It is an amenable number.
33057412 is a deficient number, since it is larger than the sum of its proper divisors (24793066).
33057412 is a wasteful number, since it uses less digits than its factorization.
33057412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8264357 (or 8264355 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 33057412 is about 5749.5575481945.
The cubic root of 33057412 is about 320.9393363040.
The spelling of 33057412 in words is "thirty-three million, fifty-seven thousand, four hundred twelve".