6641490 has 32 divisors (see below), whose sum is σ = 16096320. Its totient is φ = 1753664.

The previous prime is 6641489. The next prime is 6641491. The reversal of 6641490 is 941466.

It is an interprime number because it is at equal distance from previous prime (6641489) and next prime (6641491).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (6641491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2176 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (503010).

Almost surely, 2^6641490 is an apocalyptic number.

6641490 is an abundant number, since it is smaller than the sum of its proper divisors (9454830).

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

6641490 is a wasteful number, since it uses less digits than its factorization.

6641490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 6641490 is about 2577.1088451984. The cubic root of 6641490 is about 187.9699854000.

The spelling of 6641490 in words is "six million, six hundred forty-one thousand, four hundred ninety".