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2406431 = 8872713

2406431 has 4 divisors (see below), whose sum is σ = 2410032. Its totient is φ = 2402832.

The previous prime is 2406379. The next prime is 2406457. The reversal of 2406431 is 1346042.

It is a happy number.

2406431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2406431 - 218 = 2144287 is a prime.

It is a super-2 number, since 2×24064312 = 11581820315522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (602508).

22406431 is an apocalyptic number.

2406431 is a deficient number, since it is larger than the sum of its proper divisors (3601).

2406431 is an equidigital number, since it uses as much as digits as its factorization.

With its successor (2406432) it forms an eRAP, since the sums of their prime factors are consecutive (3600 and 3601).

2406431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2406431 is about 1551.2675462344. The cubic root of 2406431 is about 134.0060701193.

The spelling of 2406431 in words is "two million, four hundred six thousand, four hundred thirty-one".

Divisors: 1 887 2713 2406431