2242738 has 4 divisors (see below), whose sum is σ = 3364110. Its totient is φ = 1121368.

The previous prime is 2242733. The next prime is 2242739. The reversal of 2242738 is 8372422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8372422 = 2 ⋅4186211.

It can be written as a sum of positive squares in only one way, i.e., 2229049 + 13689 = 1493^2 + 117^2 .

It is a d-powerful number, because it can be written as 2⁵ + 2¹³ + 4⁶ + 2¹⁷ + 7 + 3⁷ + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (2242733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560683 + ... + 560686.

2^2242738 is an apocalyptic number.

2242738 is a deficient number, since it is larger than the sum of its proper divisors (1121372).

2242738 is a wasteful number, since it uses less digits than its factorization.

2242738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121371.

The product of its digits is 5376, while the sum is 28.

The square root of 2242738 is about 1497.5773769659. The cubic root of 2242738 is about 130.8959412940.

The spelling of 2242738 in words is "two million, two hundred forty-two thousand, seven hundred thirty-eight".