40612142 has 8 divisors (see below), whose sum is σ = 61776432. Its totient is φ = 20020000.

The previous prime is 40612129. The next prime is 40612147. The reversal of 40612142 is 24121604.

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

It is a super-4 number, since 4×40612142⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40612147) 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, 142859 + ... + 143142.

It is an arithmetic number, because the mean of its divisors is an integer number (7722054).

Almost surely, 2^40612142 is an apocalyptic number.

40612142 is a deficient number, since it is larger than the sum of its proper divisors (21164290).

40612142 is a wasteful number, since it uses less digits than its factorization.

40612142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286074.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40612142 is about 6372.7656476604. The cubic root of 40612142 is about 343.7309449713.

Adding to 40612142 its reverse (24121604), we get a palindrome (64733746).

The spelling of 40612142 in words is "forty million, six hundred twelve thousand, one hundred forty-two".