40802042105 has 32 divisors (see below), whose sum is σ = 53810697600. Its totient is φ = 29454315520.

The previous prime is 40802042009. The next prime is 40802042129. The reversal of 40802042105 is 50124020804.

It is a happy number.

It is not a de Polignac number, because 40802042105 - 2¹⁰ = 40802041081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4860722 + ... + 4869108.

It is an arithmetic number, because the mean of its divisors is an integer number (1681584300).

Almost surely, 2^40802042105 is an apocalyptic number.

It is an amenable number.

40802042105 is a deficient number, since it is larger than the sum of its proper divisors (13008655495).

40802042105 is a wasteful number, since it uses less digits than its factorization.

40802042105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 40802042105 its reverse (50124020804), we get a palindrome (90926062909).

The spelling of 40802042105 in words is "forty billion, eight hundred two million, forty-two thousand, one hundred five".