3934439428 has 6 divisors (see below), whose sum is σ = 6885269006. Its totient is φ = 1967219712.

The previous prime is 3934439401. The next prime is 3934439429. The reversal of 3934439428 is 8249344393.

It can be written as a sum of positive squares in only one way, i.e., 3091582404 + 842857024 = 55602^2 + 29032^2 .

It is a super-2 number, since 2×3934439428² = 30959627225201934368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3934439429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491804925 + ... + 491804932.

Almost surely, 2^3934439428 is an apocalyptic number.

It is an amenable number.

3934439428 is a deficient number, since it is larger than the sum of its proper divisors (2950829578).

3934439428 is a wasteful number, since it uses less digits than its factorization.

3934439428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983609861 (or 983609859 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The square root of 3934439428 is about 62725.1100278031. The cubic root of 3934439428 is about 1578.6806574194.

The spelling of 3934439428 in words is "three billion, nine hundred thirty-four million, four hundred thirty-nine thousand, four hundred twenty-eight".