2238764 has 48 divisors (see below), whose sum is σ = 4699296. Its totient is φ = 921600.

The previous prime is 2238763. The next prime is 2238767. The reversal of 2238764 is 4678322.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 3⁷ + 8³ + 7² + 6⁵ + 4² .

Its product of digits (16128) is a multiple of the sum of its prime divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 2238764.

It is not an unprimeable number, because it can be changed into a prime (2238763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30632 + ... + 30704.

It is an arithmetic number, because the mean of its divisors is an integer number (97902).

2^2238764 is an apocalyptic number.

It is an amenable number.

2238764 is an abundant number, since it is smaller than the sum of its proper divisors (2460532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2238764 is a wasteful number, since it uses less digits than its factorization.

2238764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 144 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 2238764 is about 1496.2499791145. The cubic root of 2238764 is about 130.8185822777.

The spelling of 2238764 in words is "two million, two hundred thirty-eight thousand, seven hundred sixty-four".