384985905702 has 16 divisors (see below), whose sum is σ = 770211791280. Its totient is φ = 128288638592.

The previous prime is 384985905679. The next prime is 384985905709. The reversal of 384985905702 is 207509589483.

It is a super-2 number, since 2×384985905702² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384985905709) 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, 9978303 + ... + 10016810.

It is an arithmetic number, because the mean of its divisors is an integer number (48138236955).

Almost surely, 2^384985905702 is an apocalyptic number.

384985905702 is an abundant number, since it is smaller than the sum of its proper divisors (385225885578).

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

384985905702 is a wasteful number, since it uses less digits than its factorization.

384985905702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19998327.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 384985905702 in words is "three hundred eighty-four billion, nine hundred eighty-five million, nine hundred five thousand, seven hundred two".