33690130 has 16 divisors (see below), whose sum is σ = 60882840. Its totient is φ = 13422592.

The previous prime is 33690119. The next prime is 33690131. The reversal of 33690130 is 3109633.

It can be written as a sum of positive squares in 4 ways, for example, as 32455809 + 1234321 = 5697^2 + 1111^2 .

It is a super-2 number, since 2×33690130² = 2270049718833800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33690095 and 33690104.

It is not an unprimeable number, because it can be changed into a prime (33690131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985 + ... + 9124.

Almost surely, 2^33690130 is an apocalyptic number.

33690130 is a deficient number, since it is larger than the sum of its proper divisors (27192710).

33690130 is a wasteful number, since it uses less digits than its factorization.

33690130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 33690130 is about 5804.3199429391. The cubic root of 33690130 is about 322.9740000223.

Adding to 33690130 its reverse (3109633), we get a palindrome (36799763).

The spelling of 33690130 in words is "thirty-three million, six hundred ninety thousand, one hundred thirty".