42516380 has 12 divisors (see below), whose sum is σ = 89284440. Its totient is φ = 17006544.

The previous prime is 42516373. The next prime is 42516389. The reversal of 42516380 is 8361524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42516389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062890 + ... + 1062929.

It is an arithmetic number, because the mean of its divisors is an integer number (7440370).

Almost surely, 2^42516380 is an apocalyptic number.

It is an amenable number.

42516380 is an abundant number, since it is smaller than the sum of its proper divisors (46768060).

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

42516380 is a wasteful number, since it uses less digits than its factorization.

42516380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125828 (or 2125826 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42516380 is about 6520.4585728306. The cubic root of 42516380 is about 349.0214298163.

The spelling of 42516380 in words is "forty-two million, five hundred sixteen thousand, three hundred eighty".