40023263552 has 28 divisors (see below), whose sum is σ = 79430162196. Its totient is φ = 20009364480.

The previous prime is 40023263537. The next prime is 40023263569. The reversal of 40023263552 is 25536232004.

It can be written as a sum of positive squares in 2 ways, for example, as 17251246336 + 22772017216 = 131344^2 + 150904^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631052 + ... + 691572.

It is an arithmetic number, because the mean of its divisors is an integer number (2836791507).

Almost surely, 2^40023263552 is an apocalyptic number.

It is an amenable number.

40023263552 is a deficient number, since it is larger than the sum of its proper divisors (39406898644).

40023263552 is a wasteful number, since it uses less digits than its factorization.

40023263552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70866 (or 70856 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 40023263552 its reverse (25536232004), we get a palindrome (65559495556).

The spelling of 40023263552 in words is "forty billion, twenty-three million, two hundred sixty-three thousand, five hundred fifty-two".