40602839 has 4 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 39293040.

The previous prime is 40602803. The next prime is 40602893. The reversal of 40602839 is 93820604.

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 40602839 - 2¹² = 40598743 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 (40602139) 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, 654854 + ... + 654915.

It is an arithmetic number, because the mean of its divisors is an integer number (10478160).

Almost surely, 2^40602839 is an apocalyptic number.

40602839 is a deficient number, since it is larger than the sum of its proper divisors (1309801).

40602839 is a wasteful number, since it uses less digits than its factorization.

40602839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309800.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40602839 is about 6372.0357029759. The cubic root of 40602839 is about 343.7046968837.

The spelling of 40602839 in words is "forty million, six hundred two thousand, eight hundred thirty-nine".