40329756 has 18 divisors (see below), whose sum is σ = 101944752. Its totient is φ = 13443240.

The previous prime is 40329733. The next prime is 40329781. The reversal of 40329756 is 65792304.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1120271 = 40329756 / (4 + 0 + 3 + 2 + 9 + 7 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 40329756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560100 + ... + 560171.

Almost surely, 2^40329756 is an apocalyptic number.

It is an amenable number.

40329756 is an abundant number, since it is smaller than the sum of its proper divisors (61614996).

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

40329756 is a wasteful number, since it uses less digits than its factorization.

40329756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120281 (or 1120276 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 40329756 is about 6350.5713128820. The cubic root of 40329756 is about 342.9324099636.

The spelling of 40329756 in words is "forty million, three hundred twenty-nine thousand, seven hundred fifty-six".