42380247 has 48 divisors (see below), whose sum is σ = 72062592. Its totient is φ = 21954240.

The previous prime is 42380243. The next prime is 42380249. The reversal of 42380247 is 74208324.

It is not a de Polignac number, because 42380247 - 2² = 42380243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42380243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127872 + ... + 128202.

It is an arithmetic number, because the mean of its divisors is an integer number (1501304).

Almost surely, 2^42380247 is an apocalyptic number.

42380247 is a deficient number, since it is larger than the sum of its proper divisors (29682345).

42380247 is a wasteful number, since it uses less digits than its factorization.

42380247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42380247 is about 6510.0112903128. The cubic root of 42380247 is about 348.6485214955.

The spelling of 42380247 in words is "forty-two million, three hundred eighty thousand, two hundred forty-seven".