40302168516 has 135 divisors (see below), whose sum is σ = 111384579999. Its totient is φ = 12705319152.

The previous prime is 40302168503. The next prime is 40302168523. The reversal of 40302168516 is 61586120304.

It is a happy number.

The square root of 40302168516 is 200754.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 68657575 + ... + 68658161.

Almost surely, 2^40302168516 is an apocalyptic number.

40302168516 is the 200754-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40302168516

40302168516 is an abundant number, since it is smaller than the sum of its proper divisors (71082411483).

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

40302168516 is an equidigital number, since it uses as much as digits as its factorization.

40302168516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Multiplying 40302168516 by its sum of digits (36), we get a square (1450878066576 = 1204524²).

40302168516 divided by its sum of digits (36) gives a square (1119504681 = 33459²).

The spelling of 40302168516 in words is "forty billion, three hundred two million, one hundred sixty-eight thousand, five hundred sixteen".