394252930650 has 24 divisors (see below), whose sum is σ = 977747268384. Its totient is φ = 105134114800.

The previous prime is 394252930639. The next prime is 394252930651. The reversal of 394252930650 is 56039252493.

It is a super-2 number, since 2×394252930650² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 394252930650.

It is not an unprimeable number, because it can be changed into a prime (394252930651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1314176286 + ... + 1314176585.

It is an arithmetic number, because the mean of its divisors is an integer number (40739469516).

Almost surely, 2^394252930650 is an apocalyptic number.

394252930650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

394252930650 is an abundant number, since it is smaller than the sum of its proper divisors (583494337734).

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

394252930650 is a wasteful number, since it uses less digits than its factorization.

394252930650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628352886 (or 2628352881 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 394252930650 in words is "three hundred ninety-four billion, two hundred fifty-two million, nine hundred thirty thousand, six hundred fifty".