42140236 has 6 divisors (see below), whose sum is σ = 73745420. Its totient is φ = 21070116.

The previous prime is 42140201. The next prime is 42140237. The reversal of 42140236 is 63204124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42140237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5267526 + ... + 5267533.

Almost surely, 2^42140236 is an apocalyptic number.

It is an amenable number.

42140236 is a deficient number, since it is larger than the sum of its proper divisors (31605184).

42140236 is a wasteful number, since it uses less digits than its factorization.

42140236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10535063 (or 10535061 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42140236 is about 6491.5511243462. The cubic root of 42140236 is about 347.9891109465.

The spelling of 42140236 in words is "forty-two million, one hundred forty thousand, two hundred thirty-six".