385942540 has 12 divisors (see below), whose sum is σ = 810479376. Its totient is φ = 154377008.

The previous prime is 385942493. The next prime is 385942559. The reversal of 385942540 is 45249583.

It is a junction number, because it is equal to n+sod(n) for n = 385942493 and 385942502.

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, 9648544 + ... + 9648583.

It is an arithmetic number, because the mean of its divisors is an integer number (67539948).

Almost surely, 2^385942540 is an apocalyptic number.

It is an amenable number.

385942540 is an abundant number, since it is smaller than the sum of its proper divisors (424536836).

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

385942540 is a wasteful number, since it uses less digits than its factorization.

385942540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19297136 (or 19297134 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 385942540 is about 19645.4203314666. The cubic root of 385942540 is about 728.0718114364.

The spelling of 385942540 in words is "three hundred eighty-five million, nine hundred forty-two thousand, five hundred forty".