1438202 has 4 divisors (see below), whose sum is σ = 2157306. Its totient is φ = 719100.

The previous prime is 1438181. The next prime is 1438207. The reversal of 1438202 is 2028341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2028341 = 7 ⋅289763.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 312481 = 1061^2 + 559^2 .

It is not an unprimeable number, because it can be changed into a prime (1438207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359549 + ... + 359552.

2^1438202 is an apocalyptic number.

1438202 is a deficient number, since it is larger than the sum of its proper divisors (719104).

1438202 is an equidigital number, since it uses as much as digits as its factorization.

1438202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719103.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1438202 is about 1199.2505993328. The cubic root of 1438202 is about 112.8773043691.

The spelling of 1438202 in words is "one million, four hundred thirty-eight thousand, two hundred two".