2238777 has 6 divisors (see below), whose sum is σ = 3233802. Its totient is φ = 1492512.

The previous prime is 2238767. The next prime is 2238779. The reversal of 2238777 is 7778322.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 95481 = 1464^2 + 309^2 .

It is not a de Polignac number, because 2238777 - 2¹² = 2234681 is a prime.

2238777 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124368 + ... + 124385.

It is an arithmetic number, because the mean of its divisors is an integer number (538967).

2^2238777 is an apocalyptic number.

It is an amenable number.

2238777 is a deficient number, since it is larger than the sum of its proper divisors (995025).

2238777 is a wasteful number, since it uses less digits than its factorization.

2238777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248759 (or 248756 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2238777 is about 1496.2543233020. The cubic root of 2238777 is about 130.8188354886.

The spelling of 2238777 in words is "two million, two hundred thirty-eight thousand, seven hundred seventy-seven".