42429976 has 8 divisors (see below), whose sum is σ = 79556220. Its totient is φ = 21214984.

The previous prime is 42429973. The next prime is 42429991. The reversal of 42429976 is 67992424.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42429973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2651866 + ... + 2651881.

Almost surely, 2^42429976 is an apocalyptic number.

It is an amenable number.

42429976 is a deficient number, since it is larger than the sum of its proper divisors (37126244).

42429976 is a wasteful number, since it uses less digits than its factorization.

42429976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303753 (or 5303749 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 42429976 is about 6513.8295955605. The cubic root of 42429976 is about 348.7848363004.

The spelling of 42429976 in words is "forty-two million, four hundred twenty-nine thousand, nine hundred seventy-six".