40661464 has 16 divisors (see below), whose sum is σ = 76311000. Its totient is φ = 20311872.

The previous prime is 40661459. The next prime is 40661473. The reversal of 40661464 is 46416604.

40661464 = T₅₂₀₅ + T₅₂₀₆ + T₅₂₀₇.

40661464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11812 + ... + 14860.

Almost surely, 2^40661464 is an apocalyptic number.

40661464 is the 5207-th centered triangular number.

It is an amenable number.

40661464 is a deficient number, since it is larger than the sum of its proper divisors (35649536).

40661464 is a wasteful number, since it uses less digits than its factorization.

40661464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722 (or 4718 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40661464 is about 6376.6342219074. The cubic root of 40661464 is about 343.8700383419.

The spelling of 40661464 in words is "forty million, six hundred sixty-one thousand, four hundred sixty-four".