2405628 has 36 divisors (see below), whose sum is σ = 6402760. Its totient is φ = 759456.

The previous prime is 2405621. The next prime is 2405633. The reversal of 2405628 is 8265042.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 1075 + ... + 2442.

2^2405628 is an apocalyptic number.

It is an amenable number.

2405628 is an abundant number, since it is smaller than the sum of its proper divisors (3997132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2405628 is a wasteful number, since it uses less digits than its factorization.

2405628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2405628 is about 1551.0087040375. The cubic root of 2405628 is about 133.9911630023.

Subtracting from 2405628 its sum of digits (27), we obtain a square (2405601 = 1551²).

The spelling of 2405628 in words is "two million, four hundred five thousand, six hundred twenty-eight".