3978799452 has 18 divisors (see below), whose sum is σ = 10057520928. Its totient is φ = 1326266472.

The previous prime is 3978799441. The next prime is 3978799471. The reversal of 3978799452 is 2549978793.

3978799452 is a `hidden beast` number, since 3 + 97 + 8 + 7 + 99 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 3978799452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55261068 + ... + 55261139.

Almost surely, 2^3978799452 is an apocalyptic number.

It is an amenable number.

3978799452 is an abundant number, since it is smaller than the sum of its proper divisors (6078721476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3978799452 is a wasteful number, since it uses less digits than its factorization.

3978799452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110522217 (or 110522212 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 3978799452 is about 63077.7254821383. The cubic root of 3978799452 is about 1584.5916015995.

The spelling of 3978799452 in words is "three billion, nine hundred seventy-eight million, seven hundred ninety-nine thousand, four hundred fifty-two".