3978362428 has 6 divisors (see below), whose sum is σ = 6962134256. Its totient is φ = 1989181212.

The previous prime is 3978362407. The next prime is 3978362441. The reversal of 3978362428 is 8242638793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497295300 + ... + 497295307.

Almost surely, 2^3978362428 is an apocalyptic number.

It is an amenable number.

3978362428 is a deficient number, since it is larger than the sum of its proper divisors (2983771828).

3978362428 is a wasteful number, since it uses less digits than its factorization.

3978362428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994590611 (or 994590609 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The square root of 3978362428 is about 63074.2612164423. The cubic root of 3978362428 is about 1584.5335832681.

The spelling of 3978362428 in words is "three billion, nine hundred seventy-eight million, three hundred sixty-two thousand, four hundred twenty-eight".