3708220749 has 8 divisors (see below), whose sum is σ = 5114787360. Its totient is φ = 2386900656.

The previous prime is 3708220739. The next prime is 3708220753. The reversal of 3708220749 is 9470228073.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3708220749 - 2⁵ = 3708220717 is a prime.

It is a super-2 number, since 2×3708220749² = 27501802246628242002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3708220749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3708220739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21311527 + ... + 21311700.

It is an arithmetic number, because the mean of its divisors is an integer number (639348420).

Almost surely, 2^3708220749 is an apocalyptic number.

It is an amenable number.

3708220749 is a deficient number, since it is larger than the sum of its proper divisors (1406566611).

3708220749 is a wasteful number, since it uses less digits than its factorization.

3708220749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42623259.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 3708220749 is about 60895.1619506837. The cubic root of 3708220749 is about 1547.8250103492.

The spelling of 3708220749 in words is "three billion, seven hundred eight million, two hundred twenty thousand, seven hundred forty-nine".