20410642 has 32 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 8171520.

The previous prime is 20410639. The next prime is 20410651. The reversal of 20410642 is 24601402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45234 + ... + 45682.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 2^20410642 is an apocalyptic number.

20410642 is a deficient number, since it is larger than the sum of its proper divisors (16914158).

20410642 is a wasteful number, since it uses less digits than its factorization.

20410642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20410642 is about 4517.8138518536. The cubic root of 20410642 is about 273.2869466527.

The spelling of 20410642 in words is "twenty million, four hundred ten thousand, six hundred forty-two".