2005140494 has 32 divisors (see below), whose sum is σ = 3510150336. Its totient is φ = 841328640.

The previous prime is 2005140479. The next prime is 2005140521. The reversal of 2005140494 is 4940415002.

It is a congruent number.

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, 132854 + ... + 147174.

It is an arithmetic number, because the mean of its divisors is an integer number (109692198).

Almost surely, 2^2005140494 is an apocalyptic number.

2005140494 is a deficient number, since it is larger than the sum of its proper divisors (1505009842).

2005140494 is a wasteful number, since it uses less digits than its factorization.

2005140494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14540.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2005140494 is about 44778.7951378775. The cubic root of 2005140494 is about 1260.9995625069. Note that the first 3 decimals are identical.

Adding to 2005140494 its reverse (4940415002), we get a palindrome (6945555496).

The spelling of 2005140494 in words is "two billion, five million, one hundred forty thousand, four hundred ninety-four".