385424473040 has 40 divisors (see below), whose sum is σ = 896267454408. Its totient is φ = 154143027200.

The previous prime is 385424473019. The next prime is 385424473043. The reversal of 385424473040 is 40374424583.

It can be written as a sum of positive squares in 4 ways, for example, as 41170033216 + 344254439824 = 202904^2 + 586732^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 385424472982 and 385424473000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385424473043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48824 + ... + 879336.

Almost surely, 2^385424473040 is an apocalyptic number.

It is an amenable number.

385424473040 is an abundant number, since it is smaller than the sum of its proper divisors (510842981368).

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

385424473040 is a wasteful number, since it uses less digits than its factorization.

385424473040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836327 (or 836321 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 44.

The spelling of 385424473040 in words is "three hundred eighty-five billion, four hundred twenty-four million, four hundred seventy-three thousand, forty".