6667047400 has 48 divisors (see below), whose sum is σ = 16693267500. Its totient is φ = 2461678080.

The previous prime is 6667047397. The next prime is 6667047407. The reversal of 6667047400 is 47407666.

It can be written as a sum of positive squares in 6 ways, for example, as 2355549156 + 4311498244 = 48534^2 + 65662^2 .

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 (6667047407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1279525 + ... + 1284724.

Almost surely, 2^6667047400 is an apocalyptic number.

It is an amenable number.

6667047400 is an abundant number, since it is smaller than the sum of its proper divisors (10026220100).

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

6667047400 is a wasteful number, since it uses less digits than its factorization.

6667047400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564278 (or 2564269 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 6667047400 is about 81651.9895654723. The cubic root of 6667047400 is about 1882.1078854584.

The spelling of 6667047400 in words is "six billion, six hundred sixty-seven million, forty-seven thousand, four hundred".