1990472 has 16 divisors (see below), whose sum is σ = 4071600. Its totient is φ = 904720.

The previous prime is 1990463. The next prime is 1990481. The reversal of 1990472 is 2740991.

1990472 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1990463) and next prime (1990481).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11222 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (254475).

2^1990472 is an apocalyptic number.

It is an amenable number.

1990472 is an abundant number, since it is smaller than the sum of its proper divisors (2081128).

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

1990472 is a wasteful number, since it uses less digits than its factorization.

1990472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22636 (or 22632 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1990472 is about 1410.8408840121. The cubic root of 1990472 is about 125.7917109634.

The spelling of 1990472 in words is "one million, nine hundred ninety thousand, four hundred seventy-two".