42197528 has 32 divisors (see below), whose sum is σ = 81768960. Its totient is φ = 20401920.

The previous prime is 42197521. The next prime is 42197539. The reversal of 42197528 is 82579124.

It is a junction number, because it is equal to n+sod(n) for n = 42197491 and 42197500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42197521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41150 + ... + 42162.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 2^42197528 is an apocalyptic number.

It is an amenable number.

42197528 is a deficient number, since it is larger than the sum of its proper divisors (39571432).

42197528 is a wasteful number, since it uses less digits than its factorization.

42197528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1183 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 42197528 is about 6495.9624383150. The cubic root of 42197528 is about 348.1467430634.

The spelling of 42197528 in words is "forty-two million, one hundred ninety-seven thousand, five hundred twenty-eight".