334493509 has 4 divisors (see below), whose sum is σ = 382278304. Its totient is φ = 286708716.

The previous prime is 334493507. The next prime is 334493543. The reversal of 334493509 is 905394433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 905394433 = 1987 ⋅455659.

It is not a de Polignac number, because 334493509 - 2¹ = 334493507 is a prime.

It is a super-2 number, since 2×334493509² = 223771815126266162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334493507) 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, 23892387 + ... + 23892400.

It is an arithmetic number, because the mean of its divisors is an integer number (95569576).

Almost surely, 2^334493509 is an apocalyptic number.

It is an amenable number.

334493509 is a deficient number, since it is larger than the sum of its proper divisors (47784795).

334493509 is an equidigital number, since it uses as much as digits as its factorization.

334493509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47784794.

The product of its (nonzero) digits is 174960, while the sum is 40.

The square root of 334493509 is about 18289.1637042266. The cubic root of 334493509 is about 694.1647637602.

The spelling of 334493509 in words is "three hundred thirty-four million, four hundred ninety-three thousand, five hundred nine".