42789426 has 16 divisors (see below), whose sum is σ = 86982528. Its totient is φ = 14029200.

The previous prime is 42789421. The next prime is 42789431. The reversal of 42789426 is 62498724.

It is an interprime number because it is at equal distance from previous prime (42789421) and next prime (42789431).

It is a super-3 number, since 3×42789426³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42789421) 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, 58090 + ... + 58821.

It is an arithmetic number, because the mean of its divisors is an integer number (5436408).

Almost surely, 2^42789426 is an apocalyptic number.

42789426 is an abundant number, since it is smaller than the sum of its proper divisors (44193102).

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

42789426 is a wasteful number, since it uses less digits than its factorization.

42789426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116977.

The product of its digits is 193536, while the sum is 42.

The square root of 42789426 is about 6541.3627020675. The cubic root of 42789426 is about 349.7669904886.

The spelling of 42789426 in words is "forty-two million, seven hundred eighty-nine thousand, four hundred twenty-six".