394200329749 has 4 divisors (see below), whose sum is σ = 403814971980. Its totient is φ = 384585687520.

The previous prime is 394200329723. The next prime is 394200329837. The reversal of 394200329749 is 947923002493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59624849124 + 334575480625 = 244182^2 + 578425^2 .

It is not a de Polignac number, because 394200329749 - 2¹¹ = 394200327701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394200329696 and 394200329705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394200329249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4807321054 + ... + 4807321135.

It is an arithmetic number, because the mean of its divisors is an integer number (100953742995).

Almost surely, 2^394200329749 is an apocalyptic number.

It is an amenable number.

394200329749 is a deficient number, since it is larger than the sum of its proper divisors (9614642231).

394200329749 is an equidigital number, since it uses as much as digits as its factorization.

394200329749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9614642230.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 394200329749 in words is "three hundred ninety-four billion, two hundred million, three hundred twenty-nine thousand, seven hundred forty-nine".