40989241764 has 81 divisors (see below), whose sum is σ = 106329643329. Its totient is φ = 13313638080.

The previous prime is 40989241759. The next prime is 40989241793. The reversal of 40989241764 is 46714298904.

The square root of 40989241764 is 202458.

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

It can be written as a sum of positive squares in only one way, i.e., 1975091364 + 39014150400 = 44442^2 + 197520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40989241764.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 49804257 + ... + 49805079.

Almost surely, 2^40989241764 is an apocalyptic number.

40989241764 is the 202458-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40989241764

40989241764 is an abundant number, since it is smaller than the sum of its proper divisors (65340401565).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40989241764 is an equidigital number, since it uses as much as digits as its factorization.

40989241764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 40989241764 in words is "forty billion, nine hundred eighty-nine million, two hundred forty-one thousand, seven hundred sixty-four".