1705015420 has 12 divisors (see below), whose sum is σ = 3580532424. Its totient is φ = 682006160.

The previous prime is 1705015399. The next prime is 1705015427. The reversal of 1705015420 is 245105071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1705015427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42625366 + ... + 42625405.

It is an arithmetic number, because the mean of its divisors is an integer number (298377702).

Almost surely, 2^1705015420 is an apocalyptic number.

1705015420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1705015420 is an abundant number, since it is smaller than the sum of its proper divisors (1875517004).

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

1705015420 is a wasteful number, since it uses less digits than its factorization.

1705015420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85250780 (or 85250778 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 1705015420 is about 41291.8323642824. The cubic root of 1705015420 is about 1194.6557296824.

The spelling of 1705015420 in words is "one billion, seven hundred five million, fifteen thousand, four hundred twenty".