2439866506 has 144 divisors (see below), whose sum is σ = 4936504608. Its totient is φ = 900123840.

The previous prime is 2439866489. The next prime is 2439866579. The reversal of 2439866506 is 6056689342.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 2439866506.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29395941 + ... + 29396023.

It is an arithmetic number, because the mean of its divisors is an integer number (34281282).

Almost surely, 2^2439866506 is an apocalyptic number.

2439866506 is an abundant number, since it is smaller than the sum of its proper divisors (2496638102).

2439866506 is a wasteful number, since it uses less digits than its factorization.

2439866506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The square root of 2439866506 is about 49395.0048689136. The cubic root of 2439866506 is about 1346.2385473596.

The spelling of 2439866506 in words is "two billion, four hundred thirty-nine million, eight hundred sixty-six thousand, five hundred six".