40590542 has 4 divisors (see below), whose sum is σ = 60885816. Its totient is φ = 20295270.

The previous prime is 40590541. The next prime is 40590547. The reversal of 40590542 is 24509504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40590541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10147634 + ... + 10147637.

It is an arithmetic number, because the mean of its divisors is an integer number (15221454).

Almost surely, 2^40590542 is an apocalyptic number.

40590542 is a deficient number, since it is larger than the sum of its proper divisors (20295274).

40590542 is a wasteful number, since it uses less digits than its factorization.

40590542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20295273.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40590542 is about 6371.0707106420. The cubic root of 40590542 is about 343.6699951772.

The spelling of 40590542 in words is "forty million, five hundred ninety thousand, five hundred forty-two".