2479645 has 24 divisors (see below), whose sum is σ = 3591000. Its totient is φ = 1636992.

The previous prime is 2479627. The next prime is 2479657. The reversal of 2479645 is 5469742.

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 1999396 = 693^2 + 1414^2 .

It is not a de Polignac number, because 2479645 - 2¹⁷ = 2348573 is a prime.

It is a super-2 number, since 2×2479645² = 12297278652050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4⁴ + 7³ + 9² + 6⁴ + 4⁴ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6931 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (149625).

2^2479645 is an apocalyptic number.

It is an amenable number.

2479645 is a deficient number, since it is larger than the sum of its proper divisors (1111355).

2479645 is a wasteful number, since it uses less digits than its factorization.

2479645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 390 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2479645 is about 1574.6888581558. The cubic root of 2479645 is about 135.3515301202.

The spelling of 2479645 in words is "two million, four hundred seventy-nine thousand, six hundred forty-five".