3894471400 has 24 divisors (see below), whose sum is σ = 9054646470. Its totient is φ = 1557788480.

The previous prime is 3894471377. The next prime is 3894471407. The reversal of 3894471400 is 41744983.

It can be written as a sum of positive squares in 3 ways, for example, as 2608962084 + 1285509316 = 51078^2 + 35854^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (3894471407) 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, 9735979 + ... + 9736378.

Almost surely, 2^3894471400 is an apocalyptic number.

It is an amenable number.

3894471400 is an abundant number, since it is smaller than the sum of its proper divisors (5160175070).

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

3894471400 is a wasteful number, since it uses less digits than its factorization.

3894471400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19472373 (or 19472364 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3894471400 is about 62405.7000601708. The cubic root of 3894471400 is about 1573.3167740205.

The spelling of 3894471400 in words is "three billion, eight hundred ninety-four million, four hundred seventy-one thousand, four hundred".