40267648 has 16 divisors (see below), whose sum is σ = 80220960. Its totient is φ = 20133760.

The previous prime is 40267639. The next prime is 40267649. The reversal of 40267648 is 84676204.

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

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40267649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157168 + ... + 157423.

It is an arithmetic number, because the mean of its divisors is an integer number (5013810).

Almost surely, 2^40267648 is an apocalyptic number.

It is an amenable number.

40267648 is a deficient number, since it is larger than the sum of its proper divisors (39953312).

40267648 is an equidigital number, since it uses as much as digits as its factorization.

40267648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314605 (or 314593 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 40267648 is about 6345.6794750444. The cubic root of 40267648 is about 342.7562803839.

The spelling of 40267648 in words is "forty million, two hundred sixty-seven thousand, six hundred forty-eight".