421069349 has 4 divisors (see below), whose sum is σ = 439376736. Its totient is φ = 402761964.

The previous prime is 421069321. The next prime is 421069367. The reversal of 421069349 is 943960124.

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.

It is a cyclic number.

It is not a de Polignac number, because 421069349 - 2⁸ = 421069093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421069309) 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, 9153659 + ... + 9153704.

It is an arithmetic number, because the mean of its divisors is an integer number (109844184).

Almost surely, 2^421069349 is an apocalyptic number.

It is an amenable number.

421069349 is a deficient number, since it is larger than the sum of its proper divisors (18307387).

421069349 is a wasteful number, since it uses less digits than its factorization.

421069349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18307386.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 421069349 is about 20519.9743908222. The cubic root of 421069349 is about 749.5222729523.

The spelling of 421069349 in words is "four hundred twenty-one million, sixty-nine thousand, three hundred forty-nine".