346444521 has 16 divisors (see below), whose sum is σ = 469722624. Its totient is φ = 227096064.

The previous prime is 346444477. The next prime is 346444529. The reversal of 346444521 is 125444643.

It is a happy number.

It is not a de Polignac number, because 346444521 - 2⁷ = 346444393 is a prime.

It is a super-2 number, since 2×346444521² = 240047612261838882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (346444529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41896 + ... + 49478.

It is an arithmetic number, because the mean of its divisors is an integer number (29357664).

Almost surely, 2^346444521 is an apocalyptic number.

It is an amenable number.

346444521 is a deficient number, since it is larger than the sum of its proper divisors (123278103).

346444521 is a wasteful number, since it uses less digits than its factorization.

346444521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7840.

The product of its digits is 46080, while the sum is 33.

The square root of 346444521 is about 18613.0202009239. The cubic root of 346444521 is about 702.3354112627.

The spelling of 346444521 in words is "three hundred forty-six million, four hundred forty-four thousand, five hundred twenty-one".