40046464 has 16 divisors (see below), whose sum is σ = 79780320. Its totient is φ = 20023168.

The previous prime is 40046449. The next prime is 40046467. The reversal of 40046464 is 46464004.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40046467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156304 + ... + 156559.

It is an arithmetic number, because the mean of its divisors is an integer number (4986270).

Almost surely, 2^40046464 is an apocalyptic number.

It is an amenable number.

40046464 is a deficient number, since it is larger than the sum of its proper divisors (39733856).

40046464 is an equidigital number, since it uses as much as digits as its factorization.

40046464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312877 (or 312865 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 40046464 is about 6328.2275559591. The cubic root of 40046464 is about 342.1275586325.

It can be divided in two parts, 400 and 46464, that added together give a palindrome (46864).

The spelling of 40046464 in words is "forty million, forty-six thousand, four hundred sixty-four".