394540000744 has 16 divisors (see below), whose sum is σ = 739770787620. Its totient is φ = 197267790720.

The previous prime is 394540000711. The next prime is 394540000801. The reversal of 394540000744 is 447000045493.

It can be written as a sum of positive squares in 2 ways, for example, as 392013732100 + 2526268644 = 626110^2 + 50262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 394540000697 and 394540000706.

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, 675564 + ... + 1116004.

Almost surely, 2^394540000744 is an apocalyptic number.

It is an amenable number.

394540000744 is a deficient number, since it is larger than the sum of its proper divisors (345230786876).

394540000744 is a wasteful number, since it uses less digits than its factorization.

394540000744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552420 (or 552416 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 394540000744 in words is "three hundred ninety-four billion, five hundred forty million, seven hundred forty-four", and thus it is an aban number.