2540405036 has 12 divisors (see below), whose sum is σ = 4787686512. Its totient is φ = 1172494608.

The previous prime is 2540405027. The next prime is 2540405057. The reversal of 2540405036 is 6305040452.

It is a super-2 number, since 2×2540405036² = 12907315493868322592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24426920 + ... + 24427023.

It is an arithmetic number, because the mean of its divisors is an integer number (398973876).

Almost surely, 2^2540405036 is an apocalyptic number.

2540405036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2540405036 is a deficient number, since it is larger than the sum of its proper divisors (2247281476).

2540405036 is a wasteful number, since it uses less digits than its factorization.

2540405036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48853960 (or 48853958 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2540405036 is about 50402.4308540769. The cubic root of 2540405036 is about 1364.4815101546.

Adding to 2540405036 its reverse (6305040452), we get a palindrome (8845445488).

The spelling of 2540405036 in words is "two billion, five hundred forty million, four hundred five thousand, thirty-six".