1420988 has 12 divisors (see below), whose sum is σ = 2511600. Its totient is φ = 703392.

The previous prime is 1420981. The next prime is 1420999. The reversal of 1420988 is 8890241.

It is a happy number.

It is a super-2 number, since 2×1420988² = 4038413792288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (209300).

2^1420988 is an apocalyptic number.

It is an amenable number.

1420988 is a deficient number, since it is larger than the sum of its proper divisors (1090612).

1420988 is a wasteful number, since it uses less digits than its factorization.

1420988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1420988 is about 1192.0520122881. The cubic root of 1420988 is about 112.4251485628.

The spelling of 1420988 in words is "one million, four hundred twenty thousand, nine hundred eighty-eight".