6406090 has 16 divisors (see below), whose sum is σ = 11640672. Its totient is φ = 2538064.

The previous prime is 6406087. The next prime is 6406109. The reversal of 6406090 is 906046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (727542).

Almost surely, 2^6406090 is an apocalyptic number.

6406090 is a deficient number, since it is larger than the sum of its proper divisors (5234582).

6406090 is a wasteful number, since it uses less digits than its factorization.

6406090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 6406090 is about 2531.0254838701. The cubic root of 6406090 is about 185.7224248335.

The spelling of 6406090 in words is "six million, four hundred six thousand, ninety".