40465669 has 4 divisors (see below), whose sum is σ = 41035680. Its totient is φ = 39895660.

The previous prime is 40465613. The next prime is 40465673. The reversal of 40465669 is 96656404.

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 40465669 - 2¹³ = 40457477 is a prime.

It is a super-2 number, since 2×40465669² = 3274940735235122, 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 (40465609) 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, 284899 + ... + 285040.

It is an arithmetic number, because the mean of its divisors is an integer number (10258920).

Almost surely, 2^40465669 is an apocalyptic number.

It is an amenable number.

40465669 is a deficient number, since it is larger than the sum of its proper divisors (570011).

40465669 is an equidigital number, since it uses as much as digits as its factorization.

40465669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570010.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 40465669 is about 6361.2631607252. The cubic root of 40465669 is about 343.3172103110.

The spelling of 40465669 in words is "forty million, four hundred sixty-five thousand, six hundred sixty-nine".