1420992 has 42 divisors (see below), whose sum is σ = 4074668. Its totient is φ = 473472.

The previous prime is 1420981. The next prime is 1420999. The reversal of 1420992 is 2990241.

It is not an unprimeable number, because it can be changed into a prime (1420999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658 + ... + 1809.

2^1420992 is an apocalyptic number.

1420992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1420992 is an abundant number, since it is smaller than the sum of its proper divisors (2653676).

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

1420992 is a wasteful number, since it uses less digits than its factorization.

1420992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1420992 is about 1192.0536900660. The cubic root of 1420992 is about 112.4252540529.

The spelling of 1420992 in words is "one million, four hundred twenty thousand, nine hundred ninety-two".