42392347 has 4 divisors (see below), whose sum is σ = 42458920. Its totient is φ = 42325776.

The previous prime is 42392327. The next prime is 42392353. The reversal of 42392347 is 74329324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42392347 is a prime.

It is a super-2 number, since 2×42392347² = 3594222168336818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42392327) 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, 32322 + ... + 33607.

It is an arithmetic number, because the mean of its divisors is an integer number (10614730).

Almost surely, 2^42392347 is an apocalyptic number.

42392347 is a deficient number, since it is larger than the sum of its proper divisors (66573).

42392347 is an equidigital number, since it uses as much as digits as its factorization.

42392347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66572.

The product of its digits is 36288, while the sum is 34.

The square root of 42392347 is about 6510.9405618543. The cubic root of 42392347 is about 348.6816992610.

The spelling of 42392347 in words is "forty-two million, three hundred ninety-two thousand, three hundred forty-seven".