42097538 has 8 divisors (see below), whose sum is σ = 72167232. Its totient is φ = 18041796.

The previous prime is 42097537. The next prime is 42097541. The reversal of 42097538 is 83579024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42097538² = 3544405411322888, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42097537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503470 + ... + 1503497.

It is an arithmetic number, because the mean of its divisors is an integer number (9020904).

Almost surely, 2^42097538 is an apocalyptic number.

42097538 is a deficient number, since it is larger than the sum of its proper divisors (30069694).

42097538 is a wasteful number, since it uses less digits than its factorization.

42097538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006976.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 42097538 is about 6488.2615545306. The cubic root of 42097538 is about 347.8715395416.

The spelling of 42097538 in words is "forty-two million, ninety-seven thousand, five hundred thirty-eight".