42734907 has 12 divisors (see below), whose sum is σ = 62893584. Its totient is φ = 27952080.

The previous prime is 42734899. The next prime is 42734911. The reversal of 42734907 is 70943724.

It is not a de Polignac number, because 42734907 - 2³ = 42734899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42734917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44319 + ... + 45272.

It is an arithmetic number, because the mean of its divisors is an integer number (5241132).

Almost surely, 2^42734907 is an apocalyptic number.

42734907 is a deficient number, since it is larger than the sum of its proper divisors (20158677).

42734907 is a wasteful number, since it uses less digits than its factorization.

42734907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89650 (or 89647 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 42734907 is about 6537.1941228634. The cubic root of 42734907 is about 349.6183786094.

It can be divided in two parts, 4273 and 4907, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 42734907 in words is "forty-two million, seven hundred thirty-four thousand, nine hundred seven".