2040405501 has 32 divisors (see below), whose sum is σ = 2997554688. Its totient is φ = 1229296640.

The previous prime is 2040405491. The next prime is 2040405547. The reversal of 2040405501 is 1055040402.

It is a cyclic number.

It is not a de Polignac number, because 2040405501 - 2⁷ = 2040405373 is a prime.

It is a super-2 number, since 2×2040405501² = 8326509217022122002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040405551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119011 + ... + 135071.

It is an arithmetic number, because the mean of its divisors is an integer number (93673584).

Almost surely, 2^2040405501 is an apocalyptic number.

It is an amenable number.

2040405501 is a deficient number, since it is larger than the sum of its proper divisors (957149187).

2040405501 is a wasteful number, since it uses less digits than its factorization.

2040405501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16181.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2040405501 is about 45170.8479110145. The cubic root of 2040405501 is about 1268.3491686442.

Adding to 2040405501 its reverse (1055040402), we get a palindrome (3095445903).

The spelling of 2040405501 in words is "two billion, forty million, four hundred five thousand, five hundred one".