42834690 has 32 divisors (see below), whose sum is σ = 114226560. Its totient is φ = 11422512.

The previous prime is 42834689. The next prime is 42834697. The reversal of 42834690 is 9643824.

It is a happy number.

It is a super-2 number, since 2×42834690² = 3669621334792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42834697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79054 + ... + 79593.

It is an arithmetic number, because the mean of its divisors is an integer number (3569580).

Almost surely, 2^42834690 is an apocalyptic number.

42834690 is an abundant number, since it is smaller than the sum of its proper divisors (71391870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42834690 is a wasteful number, since it uses less digits than its factorization.

42834690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158663 (or 158657 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 42834690 is about 6544.8216171260. The cubic root of 42834690 is about 349.8902785322.

The spelling of 42834690 in words is "forty-two million, eight hundred thirty-four thousand, six hundred ninety".