42286380 has 72 divisors (see below), whose sum is σ = 120961008. Its totient is φ = 11037312.

The previous prime is 42286357. The next prime is 42286399. The reversal of 42286380 is 8368224.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269262 + ... + 269418.

It is an arithmetic number, because the mean of its divisors is an integer number (1680014).

Almost surely, 2^42286380 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 42286380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60480504).

42286380 is an abundant number, since it is smaller than the sum of its proper divisors (78674628).

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

42286380 is a wasteful number, since it uses less digits than its factorization.

42286380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 42286380 is about 6502.7978593833. The cubic root of 42286380 is about 348.3909267854.

The spelling of 42286380 in words is "forty-two million, two hundred eighty-six thousand, three hundred eighty".