67239942 has 96 divisors (see below), whose sum is σ = 171908352. Its totient is φ = 17160000.

The previous prime is 67239937. The next prime is 67239967. The reversal of 67239942 is 24993276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 67239894 and 67239903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 513217 + ... + 513347.

It is an arithmetic number, because the mean of its divisors is an integer number (1790712).

Almost surely, 2^67239942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67239942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85954176).

67239942 is an abundant number, since it is smaller than the sum of its proper divisors (104668410).

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

67239942 is a wasteful number, since it uses less digits than its factorization.

67239942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 255 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 67239942 is about 8199.9964634139. The cubic root of 67239942 is about 406.6390761836.

The spelling of 67239942 in words is "sixty-seven million, two hundred thirty-nine thousand, nine hundred forty-two".