40252690306 has 4 divisors (see below), whose sum is σ = 60379035462. Its totient is φ = 20126345152.

The previous prime is 40252690301. The next prime is 40252690337. The reversal of 40252690306 is 60309625204.

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

It can be written as a sum of positive squares in only one way, i.e., 38707021081 + 1545669225 = 196741^2 + 39315^2 .

It is not an unprimeable number, because it can be changed into a prime (40252690301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063172575 + ... + 10063172578.

Almost surely, 2^40252690306 is an apocalyptic number.

40252690306 is a deficient number, since it is larger than the sum of its proper divisors (20126345156).

40252690306 is a wasteful number, since it uses less digits than its factorization.

40252690306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126345155.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 40252690306 in words is "forty billion, two hundred fifty-two million, six hundred ninety thousand, three hundred six".