42939468 has 144 divisors (see below), whose sum is σ = 134534400. Its totient is φ = 11352960.

The previous prime is 42939461. The next prime is 42939473. The reversal of 42939468 is 86493924.

It is a super-3 number, since 3×42939468³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97593 + ... + 98031.

Almost surely, 2^42939468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42939468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67267200).

42939468 is an abundant number, since it is smaller than the sum of its proper divisors (91594932).

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

42939468 is a wasteful number, since it uses less digits than its factorization.

42939468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 487 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 42939468 is about 6552.8213770864. The cubic root of 42939468 is about 350.1753352790.

The spelling of 42939468 in words is "forty-two million, nine hundred thirty-nine thousand, four hundred sixty-eight".