2026691604 has 60 divisors (see below), whose sum is σ = 6055060704. Its totient is φ = 579054096.

The previous prime is 2026691603. The next prime is 2026691629. The reversal of 2026691604 is 4061966202.

2026691604 is a `hidden beast` number, since 20 + 26 + 6 + 9 + 1 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2026691603) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 444534 + ... + 449069.

Almost surely, 2^2026691604 is an apocalyptic number.

It is an amenable number.

2026691604 is an abundant number, since it is smaller than the sum of its proper divisors (4028369100).

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

2026691604 is a wasteful number, since it uses less digits than its factorization.

2026691604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893626 (or 893615 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2026691604 is about 45018.7916763655. The cubic root of 2026691604 is about 1265.5011848588.

The spelling of 2026691604 in words is "two billion, twenty-six million, six hundred ninety-one thousand, six hundred four".