16040264 has 8 divisors (see below), whose sum is σ = 30075510. Its totient is φ = 8020128.

The previous prime is 16040261. The next prime is 16040267. The reversal of 16040264 is 46204061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16040261) and next prime (16040267).

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 6980164 = 3010^2 + 2642^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16040261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002509 + ... + 1002524.

Almost surely, 2^16040264 is an apocalyptic number.

It is an amenable number.

16040264 is a deficient number, since it is larger than the sum of its proper divisors (14035246).

16040264 is a wasteful number, since it uses less digits than its factorization.

16040264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005039 (or 2005035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 16040264 is about 4005.0298375917. The cubic root of 16040264 is about 252.1954056747.

The spelling of 16040264 in words is "sixteen million, forty thousand, two hundred sixty-four".