369787638 has 48 divisors (see below), whose sum is σ = 857104704. Its totient is φ = 105459840.

The previous prime is 369787631. The next prime is 369787643. The reversal of 369787638 is 836787963.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369787631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9381 + ... + 28767.

It is an arithmetic number, because the mean of its divisors is an integer number (17856348).

Almost surely, 2^369787638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 369787638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428552352).

369787638 is an abundant number, since it is smaller than the sum of its proper divisors (487317066).

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

369787638 is a wasteful number, since it uses less digits than its factorization.

369787638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19437 (or 19420 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The square root of 369787638 is about 19229.8631820406. The cubic root of 369787638 is about 717.7680613233.

The spelling of 369787638 in words is "three hundred sixty-nine million, seven hundred eighty-seven thousand, six hundred thirty-eight".