1601420 has 12 divisors (see below), whose sum is σ = 3363024. Its totient is φ = 640560.

The previous prime is 1601399. The next prime is 1601423. The reversal of 1601420 is 241061.

It is a junction number, because it is equal to n+sod(n) for n = 1601395 and 1601404.

It is not an unprimeable number, because it can be changed into a prime (1601423) by changing a digit.

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, 40016 + ... + 40055.

It is an arithmetic number, because the mean of its divisors is an integer number (280252).

2^1601420 is an apocalyptic number.

1601420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601420 is an abundant number, since it is smaller than the sum of its proper divisors (1761604).

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

1601420 is a wasteful number, since it uses less digits than its factorization.

1601420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80080 (or 80078 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1601420 is about 1265.4722438679. The cubic root of 1601420 is about 116.9953001740.

Adding to 1601420 its reverse (241061), we get a palindrome (1842481).

The spelling of 1601420 in words is "one million, six hundred one thousand, four hundred twenty".