42419790 has 72 divisors (see below), whose sum is σ = 128311560. Its totient is φ = 9694944.

The previous prime is 42419759. The next prime is 42419807. The reversal of 42419790 is 9791424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 400 + ... + 9219.

It is an arithmetic number, because the mean of its divisors is an integer number (1782105).

Almost surely, 2^42419790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42419790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64155780).

42419790 is an abundant number, since it is smaller than the sum of its proper divisors (85891770).

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

42419790 is a wasteful number, since it uses less digits than its factorization.

42419790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646 (or 9636 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 42419790 is about 6513.0476737085. The cubic root of 42419790 is about 348.7569235917.

The spelling of 42419790 in words is "forty-two million, four hundred nineteen thousand, seven hundred ninety".