40572836329 has 9 divisors (see below), whose sum is σ = 41166843991. Its totient is φ = 39987288040.

The previous prime is 40572836321. The next prime is 40572836333. The reversal of 40572836329 is 92363827504.

The square root of 40572836329 is 201427.

It is a perfect power (a square), and thus also a powerful number.

40572836329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1389425625 + 39183410704 = 37275^2 + 197948^2 .

It is not a de Polignac number, because 40572836329 - 2³ = 40572836321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40572836321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14299899 + ... + 14302735.

Almost surely, 2^40572836329 is an apocalyptic number.

40572836329 is the 201427-th square number.

40572836329 is the 100714-th centered octagonal number.

It is an amenable number.

40572836329 is a deficient number, since it is larger than the sum of its proper divisors (594007662).

40572836329 is an frugal number, since it uses more digits than its factorization.

40572836329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

Multiplying 40572836329 by its sum of digits (49), we get a square (1988068980121 = 1409989²).

The spelling of 40572836329 in words is "forty billion, five hundred seventy-two million, eight hundred thirty-six thousand, three hundred twenty-nine".