344970021 has 8 divisors (see below), whose sum is σ = 501774624. Its totient is φ = 209072720.

The previous prime is 344970013. The next prime is 344970047. The reversal of 344970021 is 120079443.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 344970021 - 2³ = 344970013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344972021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5226786 + ... + 5226851.

It is an arithmetic number, because the mean of its divisors is an integer number (62721828).

Almost surely, 2^344970021 is an apocalyptic number.

It is an amenable number.

344970021 is a deficient number, since it is larger than the sum of its proper divisors (156804603).

344970021 is a wasteful number, since it uses less digits than its factorization.

344970021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10453651.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 344970021 is about 18573.3685959225. The cubic root of 344970021 is about 701.3375927772.

The spelling of 344970021 in words is "three hundred forty-four million, nine hundred seventy thousand, twenty-one".