40056465 has 16 divisors (see below), whose sum is σ = 67464000. Its totient is φ = 20238912.

The previous prime is 40056463. The next prime is 40056473. The reversal of 40056465 is 56465004.

It is not a de Polignac number, because 40056465 - 2¹ = 40056463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40056463) 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, 69990 + ... + 70559.

It is an arithmetic number, because the mean of its divisors is an integer number (4216500).

Almost surely, 2^40056465 is an apocalyptic number.

It is an amenable number.

40056465 is a deficient number, since it is larger than the sum of its proper divisors (27407535).

40056465 is a wasteful number, since it uses less digits than its factorization.

40056465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140576.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 40056465 is about 6329.0176962938. The cubic root of 40056465 is about 342.1560366601.

It can be divided in two parts, 400 and 56465, that added together give a palindrome (56865).

The spelling of 40056465 in words is "forty million, fifty-six thousand, four hundred sixty-five".