42795578 has 16 divisors (see below), whose sum is σ = 75071040. Its totient is φ = 17914176.

The previous prime is 42795563. The next prime is 42795589. The reversal of 42795578 is 87559724.

It is a happy number.

It is a super-2 number, since 2×42795578² = 3662922992708168, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34943 + ... + 36146.

It is an arithmetic number, because the mean of its divisors is an integer number (4691940).

Almost surely, 2^42795578 is an apocalyptic number.

42795578 is a deficient number, since it is larger than the sum of its proper divisors (32275462).

42795578 is a wasteful number, since it uses less digits than its factorization.

42795578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71141.

The product of its digits is 705600, while the sum is 47.

The square root of 42795578 is about 6541.8329235773. The cubic root of 42795578 is about 349.7837521328.

The spelling of 42795578 in words is "forty-two million, seven hundred ninety-five thousand, five hundred seventy-eight".