42340380 has 48 divisors (see below), whose sum is σ = 121317504. Its totient is φ = 11027520.

The previous prime is 42340367. The next prime is 42340399. The reversal of 42340380 is 8304324.

It is a self number, because there is not a number n which added to its sum of digits gives 42340380.

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, 5626 + ... + 10785.

It is an arithmetic number, because the mean of its divisors is an integer number (2527448).

Almost surely, 2^42340380 is an apocalyptic number.

It is an amenable number.

42340380 is an abundant number, since it is smaller than the sum of its proper divisors (78977124).

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

42340380 is a wasteful number, since it uses less digits than its factorization.

42340380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16466 (or 16464 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 42340380 is about 6506.9485936190. The cubic root of 42340380 is about 348.5391629122.

The spelling of 42340380 in words is "forty-two million, three hundred forty thousand, three hundred eighty".