16457380 has 24 divisors (see below), whose sum is σ = 34744248. Its totient is φ = 6547968.

The previous prime is 16457333. The next prime is 16457383. The reversal of 16457380 is 8375461.

It can be written as a sum of positive squares in 4 ways, for example, as 10036224 + 6421156 = 3168^2 + 2534^2 .

It is not an unprimeable number, because it can be changed into a prime (16457383) 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, 1852 + ... + 6028.

It is an arithmetic number, because the mean of its divisors is an integer number (1447677).

Almost surely, 2^16457380 is an apocalyptic number.

16457380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16457380 is an abundant number, since it is smaller than the sum of its proper divisors (18286868).

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

16457380 is a wasteful number, since it uses less digits than its factorization.

16457380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4381 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 16457380 is about 4056.7696508429. The cubic root of 16457380 is about 254.3627816615.

It can be divided in two parts, 1645 and 7380, that added together give a square (9025 = 95²).

The spelling of 16457380 in words is "sixteen million, four hundred fifty-seven thousand, three hundred eighty".