42687768 has 32 divisors (see below), whose sum is σ = 110401200. Its totient is φ = 13738368.

The previous prime is 42687761. The next prime is 42687769. The reversal of 42687768 is 86778624.

It is a super-3 number, since 3×42687768³ (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 (42687761) 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, 29971 + ... + 31362.

Almost surely, 2^42687768 is an apocalyptic number.

It is an amenable number.

42687768 is an abundant number, since it is smaller than the sum of its proper divisors (67713432).

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

42687768 is a wasteful number, since it uses less digits than its factorization.

42687768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61371 (or 61367 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 42687768 is about 6533.5876821238. The cubic root of 42687768 is about 349.4897817525.

The spelling of 42687768 in words is "forty-two million, six hundred eighty-seven thousand, seven hundred sixty-eight".