42355047 has 48 divisors (see below), whose sum is σ = 70420992. Its totient is φ = 22161600.

The previous prime is 42355031. The next prime is 42355063. The reversal of 42355047 is 74055324.

It is an interprime number because it is at equal distance from previous prime (42355031) and next prime (42355063).

It is not a de Polignac number, because 42355047 - 2⁴ = 42355031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42355087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280422 + ... + 280572.

It is an arithmetic number, because the mean of its divisors is an integer number (1467104).

Almost surely, 2^42355047 is an apocalyptic number.

42355047 is a deficient number, since it is larger than the sum of its proper divisors (28065945).

42355047 is a wasteful number, since it uses less digits than its factorization.

42355047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42355047 is about 6508.0755219957. The cubic root of 42355047 is about 348.5794037236.

The spelling of 42355047 in words is "forty-two million, three hundred fifty-five thousand, forty-seven".