33860140 has 24 divisors (see below), whose sum is σ = 74198880. Its totient is φ = 12955008.

The previous prime is 33860131. The next prime is 33860161. The reversal of 33860140 is 4106833.

It is a super-2 number, since 2×33860140² = 2293018161639200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36345 + ... + 37264.

It is an arithmetic number, because the mean of its divisors is an integer number (3091620).

Almost surely, 2^33860140 is an apocalyptic number.

It is an amenable number.

33860140 is an abundant number, since it is smaller than the sum of its proper divisors (40338740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33860140 is a wasteful number, since it uses less digits than its factorization.

33860140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73641 (or 73639 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 33860140 is about 5818.9466400716. The cubic root of 33860140 is about 323.5163616969.

Adding to 33860140 its reverse (4106833), we get a palindrome (37966973).

The spelling of 33860140 in words is "thirty-three million, eight hundred sixty thousand, one hundred forty".