1980470 has 8 divisors (see below), whose sum is σ = 3564864. Its totient is φ = 792184.

The previous prime is 1980469. The next prime is 1980491. The reversal of 1980470 is 740891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1980470² = 7844522841800, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99014 + ... + 99033.

It is an arithmetic number, because the mean of its divisors is an integer number (445608).

2^1980470 is an apocalyptic number.

1980470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980470 is a deficient number, since it is larger than the sum of its proper divisors (1584394).

1980470 is a wasteful number, since it uses less digits than its factorization.

1980470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198054.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1980470 is about 1407.2917252652. The cubic root of 1980470 is about 125.5806585090.

The spelling of 1980470 in words is "one million, nine hundred eighty thousand, four hundred seventy".