33840572 has 6 divisors (see below), whose sum is σ = 59221008. Its totient is φ = 16920284.

The previous prime is 33840563. The next prime is 33840581. The reversal of 33840572 is 27504833.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33840563) and next prime (33840581).

It is a super-2 number, since 2×33840572² = 2290368626574368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230068 + ... + 4230075.

It is an arithmetic number, because the mean of its divisors is an integer number (9870168).

Almost surely, 2^33840572 is an apocalyptic number.

It is an amenable number.

33840572 is a deficient number, since it is larger than the sum of its proper divisors (25380436).

33840572 is a wasteful number, since it uses less digits than its factorization.

33840572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460147 (or 8460145 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 33840572 is about 5817.2649931046. The cubic root of 33840572 is about 323.4540289358.

The spelling of 33840572 in words is "thirty-three million, eight hundred forty thousand, five hundred seventy-two".