3723638890 has 8 divisors (see below), whose sum is σ = 6702550020. Its totient is φ = 1489455552.

The previous prime is 3723638887. The next prime is 3723638899. The reversal of 3723638890 is 988363273.

It can be written as a sum of positive squares in 2 ways, for example, as 3518031969 + 205606921 = 59313^2 + 14339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3723638899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186181935 + ... + 186181954.

Almost surely, 2^3723638890 is an apocalyptic number.

3723638890 is a deficient number, since it is larger than the sum of its proper divisors (2978911130).

3723638890 is a wasteful number, since it uses less digits than its factorization.

3723638890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372363896.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 3723638890 is about 61021.6264122811. The cubic root of 3723638890 is about 1549.9672403760.

The spelling of 3723638890 in words is "three billion, seven hundred twenty-three million, six hundred thirty-eight thousand, eight hundred ninety".