33490019 has 4 divisors (see below), whose sum is σ = 33745800. Its totient is φ = 33234240.

The previous prime is 33490007. The next prime is 33490031. The reversal of 33490019 is 91009433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91009433 = 71 ⋅1281823.

It is an interprime number because it is at equal distance from previous prime (33490007) and next prime (33490031).

It is a cyclic number.

It is not a de Polignac number, because 33490019 - 2⁴ = 33490003 is a prime.

It is a super-2 number, since 2×33490019² = 2243162745240722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33489973 and 33490000.

It is not an unprimeable number, because it can be changed into a prime (33490519) 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, 127694 + ... + 127955.

It is an arithmetic number, because the mean of its divisors is an integer number (8436450).

Almost surely, 2^33490019 is an apocalyptic number.

33490019 is a deficient number, since it is larger than the sum of its proper divisors (255781).

33490019 is a wasteful number, since it uses less digits than its factorization.

33490019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255780.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 33490019 is about 5787.0561600869. The cubic root of 33490019 is about 322.3332679801. Note that the first 3 decimals are identical.

The spelling of 33490019 in words is "thirty-three million, four hundred ninety thousand, nineteen".