33290146 has 8 divisors (see below), whose sum is σ = 50058540. Its totient is φ = 16603968.

The previous prime is 33290143. The next prime is 33290149. The reversal of 33290146 is 64109233.

It is an interprime number because it is at equal distance from previous prime (33290143) and next prime (33290149).

It can be written as a sum of positive squares in 2 ways, for example, as 32936121 + 354025 = 5739^2 + 595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33290146² = 2216467641402632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33290141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19531 + ... + 21166.

Almost surely, 2^33290146 is an apocalyptic number.

33290146 is a deficient number, since it is larger than the sum of its proper divisors (16768394).

33290146 is a wasteful number, since it uses less digits than its factorization.

33290146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41108.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 33290146 is about 5769.7613468843. The cubic root of 33290146 is about 321.6907450931.

Adding to 33290146 its reverse (64109233), we get a palindrome (97399379).

The spelling of 33290146 in words is "thirty-three million, two hundred ninety thousand, one hundred forty-six".