39820307040 has 72 divisors (see below), whose sum is σ = 135886802688. Its totient is φ = 10618748160.

The previous prime is 39820307029. The next prime is 39820307099. The reversal of 39820307040 is 4070302893.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 39820306986 and 39820307004.

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, 13825056 + ... + 13827935.

It is an arithmetic number, because the mean of its divisors is an integer number (1887316704).

Almost surely, 2^39820307040 is an apocalyptic number.

39820307040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39820307040 is an abundant number, since it is smaller than the sum of its proper divisors (96066495648).

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

39820307040 is a wasteful number, since it uses less digits than its factorization.

39820307040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27653012 (or 27653001 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 39820307040 in words is "thirty-nine billion, eight hundred twenty million, three hundred seven thousand, forty".