42389976 has 64 divisors (see below), whose sum is σ = 113374080. Its totient is φ = 13160960.

The previous prime is 42389957. The next prime is 42389999. The reversal of 42389976 is 67998324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43171 + ... + 44141.

It is an arithmetic number, because the mean of its divisors is an integer number (1771470).

Almost surely, 2^42389976 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 42389976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56687040).

42389976 is an abundant number, since it is smaller than the sum of its proper divisors (70984104).

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

42389976 is a wasteful number, since it uses less digits than its factorization.

42389976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1100 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 42389976 is about 6510.7584811602. The cubic root of 42389976 is about 348.6751985615.

It can be divided in two parts, 42389 and 976, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 42389976 in words is "forty-two million, three hundred eighty-nine thousand, nine hundred seventy-six".