16250040 has 48 divisors (see below), whose sum is σ = 52813800. Its totient is φ = 4333248.

The previous prime is 16250027. The next prime is 16250041. The reversal of 16250040 is 4005261.

It is a happy number.

16250040 is a `hidden beast` number, since 1 + 625 + 0 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 16249995 and 16250022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16250041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22210 + ... + 22929.

Almost surely, 2^16250040 is an apocalyptic number.

16250040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16250040 is an abundant number, since it is smaller than the sum of its proper divisors (36563760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16250040 is a wasteful number, since it uses less digits than its factorization.

16250040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45156 (or 45149 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 16250040 is about 4031.1338355356. The cubic root of 16250040 is about 253.2900587824.

The spelling of 16250040 in words is "sixteen million, two hundred fifty thousand, forty".