42349867 has 32 divisors (see below), whose sum is σ = 52531200. Its totient is φ = 34080480.

The previous prime is 42349861. The next prime is 42349933. The reversal of 42349867 is 76894324.

It is not a de Polignac number, because 42349867 - 2³ = 42349859 is a prime.

It is a super-2 number, since 2×42349867² = 3587022469835378, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (290304) is a multiple of the sum of its prime divisors (162).

It is not an unprimeable number, because it can be changed into a prime (42349861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596442 + ... + 596512.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^42349867 is an apocalyptic number.

42349867 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42349867 is a deficient number, since it is larger than the sum of its proper divisors (10181333).

42349867 is an equidigital number, since it uses as much as digits as its factorization.

42349867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 162 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 42349867 is about 6507.6775427183. The cubic root of 42349867 is about 348.5651927849.

The spelling of 42349867 in words is "forty-two million, three hundred forty-nine thousand, eight hundred sixty-seven".