40512542 has 8 divisors (see below), whose sum is σ = 69450096. Its totient is φ = 17362512.

The previous prime is 40512539. The next prime is 40512553. The reversal of 40512542 is 24521504.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446863 + ... + 1446890.

It is an arithmetic number, because the mean of its divisors is an integer number (8681262).

Almost surely, 2^40512542 is an apocalyptic number.

40512542 is a deficient number, since it is larger than the sum of its proper divisors (28937554).

40512542 is a wasteful number, since it uses less digits than its factorization.

40512542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893762.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 40512542 is about 6364.9463469852. The cubic root of 40512542 is about 343.4497185049.

The spelling of 40512542 in words is "forty million, five hundred twelve thousand, five hundred forty-two".