1485998890 has 8 divisors (see below), whose sum is σ = 2674798020. Its totient is φ = 594399552.

The previous prime is 1485998887. The next prime is 1485998971. The reversal of 1485998890 is 988995841.

It can be written as a sum of positive squares in 2 ways, for example, as 1438760761 + 47238129 = 37931^2 + 6873^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74299935 + ... + 74299954.

Almost surely, 2^1485998890 is an apocalyptic number.

1485998890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1485998890 is a deficient number, since it is larger than the sum of its proper divisors (1188799130).

1485998890 is a wasteful number, since it uses less digits than its factorization.

1485998890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148599896.

The product of its (nonzero) digits is 7464960, while the sum is 61.

The square root of 1485998890 is about 38548.6561374064. The cubic root of 1485998890 is about 1141.1414877071.

The spelling of 1485998890 in words is "one billion, four hundred eighty-five million, nine hundred ninety-eight thousand, eight hundred ninety".