40349900016 has 120 divisors (see below), whose sum is σ = 113552407280. Its totient is φ = 13375300608.

The previous prime is 40349900009. The next prime is 40349900093. The reversal of 40349900016 is 61000994304.

It is a super-2 number, since 2×40349900016² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35738940 + ... + 35740068.

Almost surely, 2^40349900016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40349900016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56776203640).

40349900016 is an abundant number, since it is smaller than the sum of its proper divisors (73202507264).

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

40349900016 is a wasteful number, since it uses less digits than its factorization.

40349900016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 40349900016 in words is "forty billion, three hundred forty-nine million, nine hundred thousand, sixteen".