40400235265172 has 48 divisors (see below), whose sum is σ = 75025884225600. Its totient is φ = 19002483494400.

The previous prime is 40400235265147. The next prime is 40400235265223. The reversal of 40400235265172 is 27156253200404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8098922 + ... + 12099297.

It is an arithmetic number, because the mean of its divisors is an integer number (1563039254700).

Almost surely, 2^{40400235265172} is an apocalyptic number.

It is an amenable number.

40400235265172 is a deficient number, since it is larger than the sum of its proper divisors (34625648960428).

40400235265172 is a wasteful number, since it uses less digits than its factorization.

40400235265172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20198696 (or 20198694 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

Adding to 40400235265172 its reverse (27156253200404), we get a palindrome (67556488465576).

The spelling of 40400235265172 in words is "forty trillion, four hundred billion, two hundred thirty-five million, two hundred sixty-five thousand, one hundred seventy-two".