42489792 has 112 divisors (see below), whose sum is σ = 127121920. Its totient is φ = 13913856.

The previous prime is 42489787. The next prime is 42489829. The reversal of 42489792 is 29798424.

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, 115593 + ... + 115959.

Almost surely, 2^42489792 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 42489792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63560960).

42489792 is an abundant number, since it is smaller than the sum of its proper divisors (84632128).

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

42489792 is a wasteful number, since it uses less digits than its factorization.

42489792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 439 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 42489792 is about 6518.4194403245. The cubic root of 42489792 is about 348.9486600834.

It can be divided in two parts, 4 and 2489792, that added together give a triangular number (2489796 = T₂₂₃₁).

The spelling of 42489792 in words is "forty-two million, four hundred eighty-nine thousand, seven hundred ninety-two".