40402155233 has 4 divisors (see below), whose sum is σ = 44075078448. Its totient is φ = 36729232020.

The previous prime is 40402155197. The next prime is 40402155247. The reversal of 40402155233 is 33255120404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40402155233 - 2¹⁴ = 40402138849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40402155196 and 40402155205.

It is not an unprimeable number, because it can be changed into a prime (40402155133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836461591 + ... + 1836461612.

It is an arithmetic number, because the mean of its divisors is an integer number (11018769612).

Almost surely, 2^40402155233 is an apocalyptic number.

It is an amenable number.

40402155233 is a deficient number, since it is larger than the sum of its proper divisors (3672923215).

40402155233 is a wasteful number, since it uses less digits than its factorization.

40402155233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672923214.

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

Adding to 40402155233 its reverse (33255120404), we get a palindrome (73657275637).

The spelling of 40402155233 in words is "forty billion, four hundred two million, one hundred fifty-five thousand, two hundred thirty-three".