40887469 has 4 divisors (see below), whose sum is σ = 46728544. Its totient is φ = 35046396.

The previous prime is 40887439. The next prime is 40887493. The reversal of 40887469 is 96478804.

It is a happy number.

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 40887469 - 2²³ = 32498861 is a prime.

It is a super-2 number, since 2×40887469² = 3343570242451922, 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 (40887439) 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, 2920527 + ... + 2920540.

It is an arithmetic number, because the mean of its divisors is an integer number (11682136).

Almost surely, 2^40887469 is an apocalyptic number.

It is an amenable number.

40887469 is a deficient number, since it is larger than the sum of its proper divisors (5841075).

40887469 is an equidigital number, since it uses as much as digits as its factorization.

40887469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841074.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 40887469 is about 6394.3310048824. The cubic root of 40887469 is about 344.5059623463.

The spelling of 40887469 in words is "forty million, eight hundred eighty-seven thousand, four hundred sixty-nine".