41290639 has 4 divisors (see below), whose sum is σ = 44466856. Its totient is φ = 38114424.

The previous prime is 41290633. The next prime is 41290643. The reversal of 41290639 is 93609214.

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 41290639 - 2⁵ = 41290607 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 (41290633) 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, 1588089 + ... + 1588114.

It is an arithmetic number, because the mean of its divisors is an integer number (11116714).

Almost surely, 2^41290639 is an apocalyptic number.

41290639 is a deficient number, since it is larger than the sum of its proper divisors (3176217).

41290639 is a wasteful number, since it uses less digits than its factorization.

41290639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176216.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 41290639 is about 6425.7792523553. The cubic root of 41290639 is about 345.6345920120.

The spelling of 41290639 in words is "forty-one million, two hundred ninety thousand, six hundred thirty-nine".