16377240 has 128 divisors (see below), whose sum is σ = 56505600. Its totient is φ = 3755520.

The previous prime is 16377233. The next prime is 16377271. The reversal of 16377240 is 4277361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16377198 and 16377207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24754 + ... + 25406.

It is an arithmetic number, because the mean of its divisors is an integer number (441450).

Almost surely, 2^16377240 is an apocalyptic number.

16377240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16377240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28252800).

16377240 is an abundant number, since it is smaller than the sum of its proper divisors (40128360).

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

16377240 is a wasteful number, since it uses less digits than its factorization.

16377240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 16377240 is about 4046.8802799193. The cubic root of 16377240 is about 253.9492324188.

The spelling of 16377240 in words is "sixteen million, three hundred seventy-seven thousand, two hundred forty".