42387198 has 32 divisors (see below), whose sum is σ = 97209600. Its totient is φ = 12070080.

The previous prime is 42387197. The next prime is 42387211. The reversal of 42387198 is 89178324.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42387197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12378 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (3037800).

Almost surely, 2^42387198 is an apocalyptic number.

42387198 is an abundant number, since it is smaller than the sum of its proper divisors (54822402).

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

42387198 is a wasteful number, since it uses less digits than its factorization.

42387198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its digits is 96768, while the sum is 42.

The square root of 42387198 is about 6510.5451384657. The cubic root of 42387198 is about 348.6675816597.

The spelling of 42387198 in words is "forty-two million, three hundred eighty-seven thousand, one hundred ninety-eight".