40202323455 has 32 divisors (see below), whose sum is σ = 73538150400. Its totient is φ = 18371872512.

The previous prime is 40202323451. The next prime is 40202323517. The reversal of 40202323455 is 55432320204.

It is not a de Polignac number, because 40202323455 - 2² = 40202323451 is a prime.

It is a super-2 number, since 2×40202323455² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202323451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247266 + ... + 376224.

It is an arithmetic number, because the mean of its divisors is an integer number (2298067200).

Almost surely, 2^40202323455 is an apocalyptic number.

40202323455 is a deficient number, since it is larger than the sum of its proper divisors (33335826945).

40202323455 is a wasteful number, since it uses less digits than its factorization.

40202323455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131943.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 40202323455 its reverse (55432320204), we get a palindrome (95634643659).

The spelling of 40202323455 in words is "forty billion, two hundred two million, three hundred twenty-three thousand, four hundred fifty-five".