1409720 has 32 divisors (see below), whose sum is σ = 3417120. Its totient is φ = 520320.

The previous prime is 1409717. The next prime is 1409731. The reversal of 1409720 is 279041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (106785).

2^1409720 is an apocalyptic number.

1409720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1409720 is an abundant number, since it is smaller than the sum of its proper divisors (2007400).

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

1409720 is a wasteful number, since it uses less digits than its factorization.

1409720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1409720 is about 1187.3163015810. The cubic root of 1409720 is about 112.1271939316.

The spelling of 1409720 in words is "one million, four hundred nine thousand, seven hundred twenty".