40454164 has 6 divisors (see below), whose sum is σ = 70794794. Its totient is φ = 20227080.

The previous prime is 40454137. The next prime is 40454189. The reversal of 40454164 is 46145404.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 864900 = 6292^2 + 930^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056767 + ... + 5056774.

Almost surely, 2^40454164 is an apocalyptic number.

It is an amenable number.

40454164 is a deficient number, since it is larger than the sum of its proper divisors (30340630).

40454164 is a wasteful number, since it uses less digits than its factorization.

40454164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113545 (or 10113543 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 40454164 is about 6360.3587949109. The cubic root of 40454164 is about 343.2846704734.

Adding to 40454164 its reverse (46145404), we get a palindrome (86599568).

The spelling of 40454164 in words is "forty million, four hundred fifty-four thousand, one hundred sixty-four".