2238747091 has 8 divisors (see below), whose sum is σ = 2559861504. Its totient is φ = 1917956040.

The previous prime is 2238747053. The next prime is 2238747101. The reversal of 2238747091 is 1907478322.

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

It is not a de Polignac number, because 2238747091 - 2¹⁵ = 2238714323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238747011) 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, 65815 + ... + 93856.

It is an arithmetic number, because the mean of its divisors is an integer number (319982688).

Almost surely, 2^2238747091 is an apocalyptic number.

2238747091 is a deficient number, since it is larger than the sum of its proper divisors (321114413).

2238747091 is a wasteful number, since it uses less digits than its factorization.

2238747091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161681.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2238747091 is about 47315.4001462526. The cubic root of 2238747091 is about 1308.1825292675.

The spelling of 2238747091 in words is "two billion, two hundred thirty-eight million, seven hundred forty-seven thousand, ninety-one".