3966247400 has 24 divisors (see below), whose sum is σ = 9221525670. Its totient is φ = 1586498880.

The previous prime is 3966247399. The next prime is 3966247403. The reversal of 3966247400 is 47426693.

It can be written as a sum of positive squares in 3 ways, for example, as 3831362404 + 134884996 = 61898^2 + 11614^2 .

It is a super-2 number, since 2×3966247400² = 31462236876013520000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3966247403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9915419 + ... + 9915818.

Almost surely, 2^3966247400 is an apocalyptic number.

It is an amenable number.

3966247400 is an abundant number, since it is smaller than the sum of its proper divisors (5255278270).

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

3966247400 is a wasteful number, since it uses less digits than its factorization.

3966247400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831253 (or 19831244 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 3966247400 is about 62978.1501792487. The cubic root of 3966247400 is about 1582.9235248417.

The spelling of 3966247400 in words is "three billion, nine hundred sixty-six million, two hundred forty-seven thousand, four hundred".