42630434 has 16 divisors (see below), whose sum is σ = 79724736. Its totient is φ = 16609200.

The previous prime is 42630421. The next prime is 42630437. The reversal of 42630434 is 43403624.

It is not an unprimeable number, because it can be changed into a prime (42630437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138257 + ... + 138564.

It is an arithmetic number, because the mean of its divisors is an integer number (4982796).

Almost surely, 2^42630434 is an apocalyptic number.

42630434 is a deficient number, since it is larger than the sum of its proper divisors (37094302).

42630434 is a wasteful number, since it uses less digits than its factorization.

42630434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276841.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 42630434 is about 6529.1985725662. The cubic root of 42630434 is about 349.3332449142. Note that the first 3 decimals are identical.

The spelling of 42630434 in words is "forty-two million, six hundred thirty thousand, four hundred thirty-four".