409020654 has 32 divisors (see below), whose sum is σ = 939767040. Its totient is φ = 116255232.

The previous prime is 409020653. The next prime is 409020673. The reversal of 409020654 is 456020904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409020653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17124 + ... + 33335.

It is an arithmetic number, because the mean of its divisors is an integer number (29367720).

Almost surely, 2^409020654 is an apocalyptic number.

409020654 is an abundant number, since it is smaller than the sum of its proper divisors (530746386).

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

409020654 is a wasteful number, since it uses less digits than its factorization.

409020654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50664.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 409020654 is about 20224.2590469960. The cubic root of 409020654 is about 742.3039067696.

The spelling of 409020654 in words is "four hundred nine million, twenty thousand, six hundred fifty-four".