40304641 has 12 divisors (see below), whose sum is σ = 44271360. Its totient is φ = 36669360.

The previous prime is 40304633. The next prime is 40304647. The reversal of 40304641 is 14640304.

It is a happy number.

It is not a de Polignac number, because 40304641 - 2³ = 40304633 is a prime.

It is a super-2 number, since 2×40304641² = 3248928172277762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40304647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10320 + ... + 13678.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

It is a Proth number, since it is equal to 615 ⋅ 2¹⁶ + 1 and 615 < 2¹⁶.

Almost surely, 2^40304641 is an apocalyptic number.

It is an amenable number.

40304641 is a deficient number, since it is larger than the sum of its proper divisors (3966719).

40304641 is a wasteful number, since it uses less digits than its factorization.

40304641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40304641 is about 6348.5936237879. The cubic root of 40304641 is about 342.8612091366.

Adding to 40304641 its reverse (14640304), we get a palindrome (54944945).

The spelling of 40304641 in words is "forty million, three hundred four thousand, six hundred forty-one".