349626421 has 8 divisors (see below), whose sum is σ = 358088544. Its totient is φ = 341179440.

The previous prime is 349626383. The next prime is 349626439. The reversal of 349626421 is 124626943.

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 349626421 - 2¹⁵ = 349593653 is a prime.

It is a super-2 number, since 2×349626421² = 244477268522538482, 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 (349626521) 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, 53091 + ... + 59311.

It is an arithmetic number, because the mean of its divisors is an integer number (44761068).

Almost surely, 2^349626421 is an apocalyptic number.

It is an amenable number.

349626421 is a deficient number, since it is larger than the sum of its proper divisors (8462123).

349626421 is a wasteful number, since it uses less digits than its factorization.

349626421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571.

The product of its digits is 62208, while the sum is 37.

The square root of 349626421 is about 18698.2999494606. The cubic root of 349626421 is about 704.4790484385.

The spelling of 349626421 in words is "three hundred forty-nine million, six hundred twenty-six thousand, four hundred twenty-one".