40402155234 has 16 divisors (see below), whose sum is σ = 92347783488. Its totient is φ = 11543472912.

The previous prime is 40402155197. The next prime is 40402155247. The reversal of 40402155234 is 43255120404.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 480977997 + ... + 480978080.

It is an arithmetic number, because the mean of its divisors is an integer number (5771736468).

Almost surely, 2^40402155234 is an apocalyptic number.

40402155234 is an abundant number, since it is smaller than the sum of its proper divisors (51945628254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40402155234 is a wasteful number, since it uses less digits than its factorization.

40402155234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961956089.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 40402155234 its reverse (43255120404), we get a palindrome (83657275638).

The spelling of 40402155234 in words is "forty billion, four hundred two million, one hundred fifty-five thousand, two hundred thirty-four".