40000469 has 4 divisors (see below), whose sum is σ = 40074144. Its totient is φ = 39926796.

The previous prime is 40000463. The next prime is 40000487. The reversal of 40000469 is 96400004.

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 a cyclic number.

It is not a de Polignac number, because 40000469 - 2¹² = 39996373 is a prime.

It is a super-2 number, since 2×40000469² = 3200075040439922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000463) 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, 36017 + ... + 37110.

It is an arithmetic number, because the mean of its divisors is an integer number (10018536).

Almost surely, 2^40000469 is an apocalyptic number.

It is an amenable number.

40000469 is a deficient number, since it is larger than the sum of its proper divisors (73675).

40000469 is an equidigital number, since it uses as much as digits as its factorization.

40000469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73674.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40000469 is about 6324.5923979336. The cubic root of 40000469 is about 341.9965259613.

The spelling of 40000469 in words is "forty million, four hundred sixty-nine", and thus it is an aban number.