39450242784 has 24 divisors (see below), whose sum is σ = 103556887560. Its totient is φ = 13150080896.

The previous prime is 39450242761. The next prime is 39450242813. The reversal of 39450242784 is 48724205493.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205469919 + ... + 205470110.

It is an arithmetic number, because the mean of its divisors is an integer number (4314870315).

Almost surely, 2^39450242784 is an apocalyptic number.

It is an amenable number.

39450242784 is an abundant number, since it is smaller than the sum of its proper divisors (64106644776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39450242784 is a wasteful number, since it uses less digits than its factorization.

39450242784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410940042 (or 410940034 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 39450242784 in words is "thirty-nine billion, four hundred fifty million, two hundred forty-two thousand, seven hundred eighty-four".