39873072240 has 60 divisors (see below), whose sum is σ = 133907070024. Its totient is φ = 10632819072.

The previous prime is 39873072149. The next prime is 39873072259. The reversal of 39873072240 is 4227037893.

39873072240 is a `hidden beast` number, since 398 + 7 + 30 + 7 + 224 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27688914 + ... + 27690353.

Almost surely, 2^39873072240 is an apocalyptic number.

39873072240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39873072240 is an abundant number, since it is smaller than the sum of its proper divisors (94033997784).

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

39873072240 is a wasteful number, since it uses less digits than its factorization.

39873072240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55379286 (or 55379277 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 39873072240 in words is "thirty-nine billion, eight hundred seventy-three million, seventy-two thousand, two hundred forty".