40204243502 has 4 divisors (see below), whose sum is σ = 60306365256. Its totient is φ = 20102121750.

The previous prime is 40204243493. The next prime is 40204243543. The reversal of 40204243502 is 20534240204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051060874 + ... + 10051060877.

It is an arithmetic number, because the mean of its divisors is an integer number (15076591314).

Almost surely, 2^40204243502 is an apocalyptic number.

40204243502 is a deficient number, since it is larger than the sum of its proper divisors (20102121754).

40204243502 is a wasteful number, since it uses less digits than its factorization.

40204243502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20102121753.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 40204243502 its reverse (20534240204), we get a palindrome (60738483706).

It can be divided in two parts, 402042 and 43502, that added together give a palindrome (445544).

The spelling of 40204243502 in words is "forty billion, two hundred four million, two hundred forty-three thousand, five hundred two".