42623349 has 4 divisors (see below), whose sum is σ = 56831136. Its totient is φ = 28415564.

The previous prime is 42623299. The next prime is 42623351. The reversal of 42623349 is 94332624.

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 42623349 - 2⁸ = 42623093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42623249) 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, 7103889 + ... + 7103894.

It is an arithmetic number, because the mean of its divisors is an integer number (14207784).

Almost surely, 2^42623349 is an apocalyptic number.

It is an amenable number.

42623349 is a deficient number, since it is larger than the sum of its proper divisors (14207787).

42623349 is a wasteful number, since it uses less digits than its factorization.

42623349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14207786.

The product of its digits is 31104, while the sum is 33.

The square root of 42623349 is about 6528.6559872611. The cubic root of 42623349 is about 349.3138912667.

The spelling of 42623349 in words is "forty-two million, six hundred twenty-three thousand, three hundred forty-nine".