3647236242 has 64 divisors (see below), whose sum is σ = 8133866496. Its totient is φ = 1082695680.

The previous prime is 3647236223. The next prime is 3647236259. The reversal of 3647236242 is 2426327463.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3647236242.

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, 851418 + ... + 855690.

It is an arithmetic number, because the mean of its divisors is an integer number (127091664).

Almost surely, 2^3647236242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3647236242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4066933248).

3647236242 is an abundant number, since it is smaller than the sum of its proper divisors (4486630254).

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

3647236242 is a wasteful number, since it uses less digits than its factorization.

3647236242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675.

The product of its digits is 290304, while the sum is 39.

The square root of 3647236242 is about 60392.3525125491. The cubic root of 3647236242 is about 1539.2930135970.

The spelling of 3647236242 in words is "three billion, six hundred forty-seven million, two hundred thirty-six thousand, two hundred forty-two".