33431242 has 12 divisors (see below), whose sum is σ = 54301590. Its totient is φ = 15429648.

The previous prime is 33431227. The next prime is 33431257. The reversal of 33431242 is 24213433.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33431227) and next prime (33431257).

It can be written as a sum of positive squares in 3 ways, for example, as 24000201 + 9431041 = 4899^2 + 3071^2 .

It is a super-2 number, since 2×33431242² = 2235295883325128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49117 + ... + 49792.

Almost surely, 2^33431242 is an apocalyptic number.

33431242 is a deficient number, since it is larger than the sum of its proper divisors (20870348).

33431242 is a wasteful number, since it uses less digits than its factorization.

33431242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98937 (or 98924 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 33431242 is about 5781.9756139230. The cubic root of 33431242 is about 322.1445861226.

Adding to 33431242 its reverse (24213433), we get a palindrome (57644675).

The spelling of 33431242 in words is "thirty-three million, four hundred thirty-one thousand, two hundred forty-two".