416640138 has 16 divisors (see below), whose sum is σ = 835998240. Its totient is φ = 138427056.

The previous prime is 416640109. The next prime is 416640143. The reversal of 416640138 is 831046614.

It is a junction number, because it is equal to n+sod(n) for n = 416640099 and 416640108.

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, 111253 + ... + 114936.

It is an arithmetic number, because the mean of its divisors is an integer number (52249890).

Almost surely, 2^416640138 is an apocalyptic number.

416640138 is an abundant number, since it is smaller than the sum of its proper divisors (419358102).

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

416640138 is a wasteful number, since it uses less digits than its factorization.

416640138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226501.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 416640138 is about 20411.7646958807. The cubic root of 416640138 is about 746.8849393307.

The spelling of 416640138 in words is "four hundred sixteen million, six hundred forty thousand, one hundred thirty-eight".