3721238 has 8 divisors (see below), whose sum is σ = 5732832. Its totient is φ = 1810296.

The previous prime is 3721229. The next prime is 3721259. The reversal of 3721238 is 8321273.

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

It is a super-2 number, since 2×3721238² = 27695224505288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25070 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (716604).

Almost surely, 2^3721238 is an apocalyptic number.

3721238 is a deficient number, since it is larger than the sum of its proper divisors (2011594).

3721238 is a wasteful number, since it uses less digits than its factorization.

3721238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50326.

The product of its digits is 2016, while the sum is 26.

The square root of 3721238 is about 1929.0510620510. The cubic root of 3721238 is about 154.9634044718.

The spelling of 3721238 in words is "three million, seven hundred twenty-one thousand, two hundred thirty-eight".