33100040 has 16 divisors (see below), whose sum is σ = 74475180. Its totient is φ = 13240000.

The previous prime is 33100031. The next prime is 33100057. The reversal of 33100040 is 4000133.

It can be written as a sum of positive squares in 2 ways, for example, as 31832164 + 1267876 = 5642^2 + 1126^2 .

It is a super-2 number, since 2×33100040² = 2191225296003200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33099994 and 33100030.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413711 + ... + 413790.

Almost surely, 2^33100040 is an apocalyptic number.

It is an amenable number.

33100040 is an abundant number, since it is smaller than the sum of its proper divisors (41375140).

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

33100040 is a wasteful number, since it uses less digits than its factorization.

33100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827512 (or 827508 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 33100040 is about 5753.2634217460. The cubic root of 33100040 is about 321.0772289862.

Adding to 33100040 its reverse (4000133), we get a palindrome (37100173).

The spelling of 33100040 in words is "thirty-three million, one hundred thousand, forty".