40602143 has 4 divisors (see below), whose sum is σ = 40961568. Its totient is φ = 40242720.

The previous prime is 40602139. The next prime is 40602161. The reversal of 40602143 is 34120604.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40602143 - 2² = 40602139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40602193) 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, 179543 + ... + 179768.

It is an arithmetic number, because the mean of its divisors is an integer number (10240392).

Almost surely, 2^40602143 is an apocalyptic number.

40602143 is a deficient number, since it is larger than the sum of its proper divisors (359425).

40602143 is a wasteful number, since it uses less digits than its factorization.

40602143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359424.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40602143 is about 6371.9810891119. The cubic root of 40602143 is about 343.7027329830.

Adding to 40602143 its reverse (34120604), we get a palindrome (74722747).

The spelling of 40602143 in words is "forty million, six hundred two thousand, one hundred forty-three".