2026640506 has 16 divisors (see below), whose sum is σ = 3334854240. Its totient is φ = 916052080.

The previous prime is 2026640471. The next prime is 2026640507. The reversal of 2026640506 is 6050466202.

It is not an unprimeable number, because it can be changed into a prime (2026640507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253381 + ... + 261256.

It is an arithmetic number, because the mean of its divisors is an integer number (208428390).

Almost surely, 2^2026640506 is an apocalyptic number.

2026640506 is a deficient number, since it is larger than the sum of its proper divisors (1308213734).

2026640506 is a wasteful number, since it uses less digits than its factorization.

2026640506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514829.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2026640506 is about 45018.2241542245. The cubic root of 2026640506 is about 1265.4905492787.

The spelling of 2026640506 in words is "two billion, twenty-six million, six hundred forty thousand, five hundred six".