385401104840 has 64 divisors (see below), whose sum is σ = 870176790000. Its totient is φ = 153623347200.

The previous prime is 385401104833. The next prime is 385401104857. The reversal of 385401104840 is 48401104583.

It can be written as a sum of positive squares in 8 ways, for example, as 55693168036 + 329707936804 = 235994^2 + 574202^2 .

It is a super-2 number, since 2×385401104840² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385401104794 and 385401104803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25134296 + ... + 25149624.

Almost surely, 2^385401104840 is an apocalyptic number.

It is an amenable number.

385401104840 is an abundant number, since it is smaller than the sum of its proper divisors (484775685160).

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

385401104840 is a wasteful number, since it uses less digits than its factorization.

385401104840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17490 (or 17486 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 385401104840 in words is "three hundred eighty-five billion, four hundred one million, one hundred four thousand, eight hundred forty".