2638802 has 4 divisors (see below), whose sum is σ = 3958206. Its totient is φ = 1319400.

The previous prime is 2638793. The next prime is 2638841. The reversal of 2638802 is 2088362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2088362 = 2 ⋅1044181.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 703921 = 1391^2 + 839^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659699 + ... + 659702.

2^2638802 is an apocalyptic number.

2638802 is a deficient number, since it is larger than the sum of its proper divisors (1319404).

2638802 is a wasteful number, since it uses less digits than its factorization.

2638802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319403.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2638802 is about 1624.4389800790. The cubic root of 2638802 is about 138.1875556618.

The spelling of 2638802 in words is "two million, six hundred thirty-eight thousand, eight hundred two".