42890334 has 16 divisors (see below), whose sum is σ = 90295680. Its totient is φ = 13544280.

The previous prime is 42890311. The next prime is 42890339. The reversal of 42890334 is 43309824.

It is a super-3 number, since 3×42890334³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42890295 and 42890304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42890339) 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, 188002 + ... + 188229.

It is an arithmetic number, because the mean of its divisors is an integer number (5643480).

Almost surely, 2^42890334 is an apocalyptic number.

42890334 is an abundant number, since it is smaller than the sum of its proper divisors (47405346).

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

42890334 is a wasteful number, since it uses less digits than its factorization.

42890334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376255.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 42890334 is about 6549.0712318618. The cubic root of 42890334 is about 350.0417201968.

The spelling of 42890334 in words is "forty-two million, eight hundred ninety thousand, three hundred thirty-four".