42198520 has 64 divisors (see below), whose sum is σ = 116867520. Its totient is φ = 13353984.

The previous prime is 42198503. The next prime is 42198529. The reversal of 42198520 is 2589124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42198529) 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, 2157 + ... + 9436.

It is an arithmetic number, because the mean of its divisors is an integer number (1826055).

Almost surely, 2^42198520 is an apocalyptic number.

42198520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42198520 is an abundant number, since it is smaller than the sum of its proper divisors (74669000).

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

42198520 is a wasteful number, since it uses less digits than its factorization.

42198520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11624 (or 11620 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 42198520 is about 6496.0387929876. The cubic root of 42198520 is about 348.1494711763.

The spelling of 42198520 in words is "forty-two million, one hundred ninety-eight thousand, five hundred twenty".