3988446380 has 24 divisors (see below), whose sum is σ = 8580025440. Its totient is φ = 1556466560.

The previous prime is 3988446373. The next prime is 3988446383. The reversal of 3988446380 is 836448893.

It is a super-2 number, since 2×3988446380² = 31815409052270208800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3988446383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431160 + ... + 2432799.

It is an arithmetic number, because the mean of its divisors is an integer number (357501060).

Almost surely, 2^3988446380 is an apocalyptic number.

It is an amenable number.

3988446380 is an abundant number, since it is smaller than the sum of its proper divisors (4591579060).

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

3988446380 is a wasteful number, since it uses less digits than its factorization.

3988446380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864009 (or 4864007 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 53.

The square root of 3988446380 is about 63154.1477656060. The cubic root of 3988446380 is about 1585.8712257237.

It can be divided in two parts, 398844 and 6380, that added together give a cube (405224 = 74³).

The spelling of 3988446380 in words is "three billion, nine hundred eighty-eight million, four hundred forty-six thousand, three hundred eighty".