16019490 has 32 divisors (see below), whose sum is σ = 38558016. Its totient is φ = 4259520.

The previous prime is 16019473. The next prime is 16019519. The reversal of 16019490 is 9491061.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15180 + ... + 16200.

It is an arithmetic number, because the mean of its divisors is an integer number (1204938).

Almost surely, 2^16019490 is an apocalyptic number.

16019490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16019490 is an abundant number, since it is smaller than the sum of its proper divisors (22538526).

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

16019490 is a wasteful number, since it uses less digits than its factorization.

16019490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 16019490 is about 4002.4355085373. The cubic root of 16019490 is about 252.0864845511.

The spelling of 16019490 in words is "sixteen million, nineteen thousand, four hundred ninety".