40403464 has 8 divisors (see below), whose sum is σ = 75756510. Its totient is φ = 20201728.

The previous prime is 40403459. The next prime is 40403471. The reversal of 40403464 is 46430404.

It is a happy number.

40403464 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 1340964 = 6250^2 + 1158^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2525209 + ... + 2525224.

Almost surely, 2^40403464 is an apocalyptic number.

It is an amenable number.

40403464 is a deficient number, since it is larger than the sum of its proper divisors (35353046).

40403464 is a wasteful number, since it uses less digits than its factorization.

40403464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050439 (or 5050435 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 40403464 is about 6356.3719211512. The cubic root of 40403464 is about 343.1412010337.

Adding to 40403464 its reverse (46430404), we get a palindrome (86833868).

The spelling of 40403464 in words is "forty million, four hundred three thousand, four hundred sixty-four".