16372540 has 24 divisors (see below), whose sum is σ = 34458480. Its totient is φ = 6534528.

The previous prime is 16372523. The next prime is 16372541. The reversal of 16372540 is 4527361.

It is a junction number, because it is equal to n+sod(n) for n = 16372499 and 16372508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16372541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16704 + ... + 17656.

It is an arithmetic number, because the mean of its divisors is an integer number (1435770).

Almost surely, 2^16372540 is an apocalyptic number.

16372540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16372540 is an abundant number, since it is smaller than the sum of its proper divisors (18085940).

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

16372540 is a wasteful number, since it uses less digits than its factorization.

16372540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 16372540 is about 4046.2995440279. The cubic root of 16372540 is about 253.9249370025.

The spelling of 16372540 in words is "sixteen million, three hundred seventy-two thousand, five hundred forty".