2478632405 has 8 divisors (see below), whose sum is σ = 3054747192. Its totient is φ = 1929313728.

The previous prime is 2478632399. The next prime is 2478632411. The reversal of 2478632405 is 5042368742.

It is an interprime number because it is at equal distance from previous prime (2478632399) and next prime (2478632411).

It can be written as a sum of positive squares in 4 ways, for example, as 615933124 + 1862699281 = 24818^2 + 43159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2478632405 - 2¹⁶ = 2478566869 is a prime.

It is a super-2 number, since 2×2478632405² = 12287237198232168050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6698822 + ... + 6699191.

It is an arithmetic number, because the mean of its divisors is an integer number (381843399).

Almost surely, 2^2478632405 is an apocalyptic number.

It is an amenable number.

2478632405 is a deficient number, since it is larger than the sum of its proper divisors (576114787).

2478632405 is a wasteful number, since it uses less digits than its factorization.

2478632405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398055.

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 2478632405 is about 49785.8655142200. The cubic root of 2478632405 is about 1353.3310343103.

The spelling of 2478632405 in words is "two billion, four hundred seventy-eight million, six hundred thirty-two thousand, four hundred five".