1420760 has 32 divisors (see below), whose sum is σ = 3488400. Its totient is φ = 516480.

The previous prime is 1420753. The next prime is 1420777. The reversal of 1420760 is 670241.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1175 + ... + 2054.

2^1420760 is an apocalyptic number.

1420760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420760 is an abundant number, since it is smaller than the sum of its proper divisors (2067640).

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

1420760 is a wasteful number, since it uses less digits than its factorization.

1420760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3247 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1420760 is about 1191.9563750406. The cubic root of 1420760 is about 112.4191353042.

The spelling of 1420760 in words is "one million, four hundred twenty thousand, seven hundred sixty".