36991416 has 128 divisors (see below), whose sum is σ = 118632960. Its totient is φ = 9331200.

The previous prime is 36991399. The next prime is 36991421. The reversal of 36991416 is 61419963.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68106 + ... + 68646.

It is an arithmetic number, because the mean of its divisors is an integer number (926820).

Almost surely, 2^36991416 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 36991416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59316480).

36991416 is an abundant number, since it is smaller than the sum of its proper divisors (81641544).

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

36991416 is a wasteful number, since it uses less digits than its factorization.

36991416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 601 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 36991416 is about 6082.0568889151. The cubic root of 36991416 is about 333.1964139892.

It can be divided in two parts, 3699 and 1416, that added together give a palindrome (5115).

The spelling of 36991416 in words is "thirty-six million, nine hundred ninety-one thousand, four hundred sixteen".