42129484 has 24 divisors (see below), whose sum is σ = 75660480. Its totient is φ = 20516736.

The previous prime is 42129463. The next prime is 42129497. The reversal of 42129484 is 48492124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51672 + ... + 52480.

It is an arithmetic number, because the mean of its divisors is an integer number (3152520).

Almost surely, 2^42129484 is an apocalyptic number.

It is an amenable number.

42129484 is a deficient number, since it is larger than the sum of its proper divisors (33530996).

42129484 is a wasteful number, since it uses less digits than its factorization.

42129484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1135 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 42129484 is about 6490.7229181348. The cubic root of 42129484 is about 347.9595121787.

The spelling of 42129484 in words is "forty-two million, one hundred twenty-nine thousand, four hundred eighty-four".