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40814409 = 313604803
BaseRepresentation
bin1001101110110…
…0011101001001
32211210120211210
42123230131021
540422030114
64014443333
71003626306
oct233543511
984716753
1040814409
1121047519
1211803549
1385c044c
1455c60ad
1538b3259
hex26ec749

40814409 has 4 divisors (see below), whose sum is σ = 54419216. Its totient is φ = 27209604.

The previous prime is 40814387. The next prime is 40814419. The reversal of 40814409 is 90441804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40814409 - 29 = 40813897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40814419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6802399 + ... + 6802404.

It is an arithmetic number, because the mean of its divisors is an integer number (13604804).

Almost surely, 240814409 is an apocalyptic number.

It is an amenable number.

40814409 is a deficient number, since it is larger than the sum of its proper divisors (13604807).

40814409 is a wasteful number, since it uses less digits than its factorization.

40814409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13604806.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40814409 is about 6388.6155777289. The cubic root of 40814409 is about 344.3006458797.

The spelling of 40814409 in words is "forty million, eight hundred fourteen thousand, four hundred nine".

Divisors: 1 3 13604803 40814409