40477716 has 54 divisors (see below), whose sum is σ = 104747370. Its totient is φ = 13179552.

The previous prime is 40477711. The next prime is 40477721. The reversal of 40477716 is 61777404.

It is an interprime number because it is at equal distance from previous prime (40477711) and next prime (40477721).

It can be written as a sum of positive squares in only one way, i.e., 38489616 + 1988100 = 6204^2 + 1410^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40477711) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79270 + ... + 79778.

Almost surely, 2^40477716 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 40477716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52373685).

40477716 is an abundant number, since it is smaller than the sum of its proper divisors (64269654).

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

40477716 is a wasteful number, since it uses less digits than its factorization.

40477716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 40477716 is about 6362.2099933907. The cubic root of 40477716 is about 343.3512764892.

The spelling of 40477716 in words is "forty million, four hundred seventy-seven thousand, seven hundred sixteen".