2081604426 has 32 divisors (see below), whose sum is σ = 4545637056. Its totient is φ = 630240000.

The previous prime is 2081604409. The next prime is 2081604433. The reversal of 2081604426 is 6244061802.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 66136 + ... + 92396.

It is an arithmetic number, because the mean of its divisors is an integer number (142051158).

Almost surely, 2^2081604426 is an apocalyptic number.

2081604426 is an abundant number, since it is smaller than the sum of its proper divisors (2464032630).

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

2081604426 is a wasteful number, since it uses less digits than its factorization.

2081604426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27478.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2081604426 is about 45624.6032969055. The cubic root of 2081604426 is about 1276.8289887463.

The spelling of 2081604426 in words is "two billion, eighty-one million, six hundred four thousand, four hundred twenty-six".