3851694442 has 4 divisors (see below), whose sum is σ = 5777541666. Its totient is φ = 1925847220.

The previous prime is 3851694433. The next prime is 3851694461. The reversal of 3851694442 is 2444961583.

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

It can be written as a sum of positive squares in only one way, i.e., 3778437961 + 73256481 = 61469^2 + 8559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3851694392 and 3851694401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962923609 + ... + 962923612.

Almost surely, 2^3851694442 is an apocalyptic number.

3851694442 is a deficient number, since it is larger than the sum of its proper divisors (1925847224).

3851694442 is a wasteful number, since it uses less digits than its factorization.

3851694442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925847223.

The product of its digits is 829440, while the sum is 46.

The square root of 3851694442 is about 62062.0209306787. The cubic root of 3851694442 is about 1567.5351049255.

The spelling of 3851694442 in words is "three billion, eight hundred fifty-one million, six hundred ninety-four thousand, four hundred forty-two".