40354465 has 16 divisors (see below), whose sum is σ = 49653648. Its totient is φ = 31472896.

The previous prime is 40354463. The next prime is 40354487. The reversal of 40354465 is 56445304.

It can be written as a sum of positive squares in 8 ways, for example, as 399424 + 39955041 = 632^2 + 6321^2 .

It is a cyclic number.

It is not a de Polignac number, because 40354465 - 2¹ = 40354463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40354463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51819 + ... + 52591.

It is an arithmetic number, because the mean of its divisors is an integer number (3103353).

Almost surely, 2^40354465 is an apocalyptic number.

It is an amenable number.

40354465 is a deficient number, since it is larger than the sum of its proper divisors (9299183).

40354465 is a wasteful number, since it uses less digits than its factorization.

40354465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 40354465 is about 6352.5164305179. The cubic root of 40354465 is about 343.0024309427.

Adding to 40354465 its reverse (56445304), we get a palindrome (96799769).

The spelling of 40354465 in words is "forty million, three hundred fifty-four thousand, four hundred sixty-five".