3629787444 has 72 divisors (see below), whose sum is σ = 9554388480. Its totient is φ = 1191711312.

The previous prime is 3629787409. The next prime is 3629787503. The reversal of 3629787444 is 4447879263.

3629787444 is a `hidden beast` number, since 3 + 629 + 7 + 8 + 7 + 4 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 481069 + ... + 488555.

It is an arithmetic number, because the mean of its divisors is an integer number (132699840).

Almost surely, 2^3629787444 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 3629787444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4777194240).

3629787444 is an abundant number, since it is smaller than the sum of its proper divisors (5924601036).

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

3629787444 is a wasteful number, since it uses less digits than its factorization.

3629787444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634 (or 7559 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The square root of 3629787444 is about 60247.7173343522. The cubic root of 3629787444 is about 1536.8343702882.

The spelling of 3629787444 in words is "three billion, six hundred twenty-nine million, seven hundred eighty-seven thousand, four hundred forty-four".