1405990170 has 128 divisors (see below), whose sum is σ = 4077964800. Its totient is φ = 342641664.

The previous prime is 1405990141. The next prime is 1405990193. The reversal of 1405990170 is 710995041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 359586 + ... + 363474.

It is an arithmetic number, because the mean of its divisors is an integer number (31859100).

Almost surely, 2^1405990170 is an apocalyptic number.

1405990170 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 1405990170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2038982400).

1405990170 is an abundant number, since it is smaller than the sum of its proper divisors (2671974630).

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

1405990170 is a wasteful number, since it uses less digits than its factorization.

1405990170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1405990170 is about 37496.5354399576. The cubic root of 1405990170 is about 1120.2821807064.

The spelling of 1405990170 in words is "one billion, four hundred five million, nine hundred ninety thousand, one hundred seventy".