16142490 has 192 divisors, whose sum is σ = 54302976. Its totient is φ = 3359232.

The previous prime is 16142461. The next prime is 16142507. The reversal of 16142490 is 9424161.

16142490 = 1² + 2² + ... + 364².

16142490 is a `hidden beast` number, since 1 + 614 + 2 + 49 + 0 = 666.

16142490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 221094 + ... + 221166.

It is an arithmetic number, because the mean of its divisors is an integer number (282828).

Almost surely, 2^16142490 is an apocalyptic number.

16142490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16142490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27151488).

16142490 is an abundant number, since it is smaller than the sum of its proper divisors (38160486).

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

16142490 is a wasteful number, since it uses less digits than its factorization.

16142490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16142490 is about 4017.7717705216. The cubic root of 16142490 is about 252.7300259819.

The spelling of 16142490 in words is "sixteen million, one hundred forty-two thousand, four hundred ninety".