1420120 has 32 divisors (see below), whose sum is σ = 3442320. Its totient is φ = 524160.

The previous prime is 1420109. The next prime is 1420121. The reversal of 1420120 is 210241.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1420097 and 1420106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420121) 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 7 ways as a sum of consecutive naturals, for example, 846 + ... + 1885.

2^1420120 is an apocalyptic number.

1420120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420120 is an abundant number, since it is smaller than the sum of its proper divisors (2022200).

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

1420120 is a wasteful number, since it uses less digits than its factorization.

1420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1420120 is about 1191.6878785991. The cubic root of 1420120 is about 112.4022525437.

Adding to 1420120 its reverse (210241), we get a palindrome (1630361).

It can be divided in two parts, 1420 and 120, that added together give a triangular number (1540 = T₅₅).

The spelling of 1420120 in words is "one million, four hundred twenty thousand, one hundred twenty".