2623402 has 4 divisors (see below), whose sum is σ = 3935106. Its totient is φ = 1311700.

The previous prime is 2623391. The next prime is 2623409. The reversal of 2623402 is 2043262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1371241 + 1252161 = 1171^2 + 1119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2623402.

It is not an unprimeable number, because it can be changed into a prime (2623409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655849 + ... + 655852.

2^2623402 is an apocalyptic number.

2623402 is a deficient number, since it is larger than the sum of its proper divisors (1311704).

2623402 is a wasteful number, since it uses less digits than its factorization.

2623402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311703.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2623402 is about 1619.6919460194. The cubic root of 2623402 is about 137.9182110047.

Adding to 2623402 its reverse (2043262), we get a palindrome (4666664).

It can be divided in two parts, 2623 and 402, that added together give a square (3025 = 55²).

The spelling of 2623402 in words is "two million, six hundred twenty-three thousand, four hundred two".