2405626 has 4 divisors (see below), whose sum is σ = 3608442. Its totient is φ = 1202812.

The previous prime is 2405621. The next prime is 2405633. The reversal of 2405626 is 6265042.

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., 2405601 + 25 = 1551^2 + 5^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2405626.

It is not an unprimeable number, because it can be changed into a prime (2405621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601405 + ... + 601408.

2^2405626 is an apocalyptic number.

2405626 is a deficient number, since it is larger than the sum of its proper divisors (1202816).

2405626 is a wasteful number, since it uses less digits than its factorization.

2405626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202815.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2405626 is about 1551.0080592956. The cubic root of 2405626 is about 133.9911258696.

Subtracting from 2405626 its sum of digits (25), we obtain a square (2405601 = 1551²).

The spelling of 2405626 in words is "two million, four hundred five thousand, six hundred twenty-six".