1420670 has 8 divisors (see below), whose sum is σ = 2557224. Its totient is φ = 568264.

The previous prime is 1420667. The next prime is 1420697. The reversal of 1420670 is 760241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71024 + ... + 71043.

It is an arithmetic number, because the mean of its divisors is an integer number (319653).

2^1420670 is an apocalyptic number.

1420670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420670 is a deficient number, since it is larger than the sum of its proper divisors (1136554).

1420670 is a wasteful number, since it uses less digits than its factorization.

1420670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142074.

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

The square root of 1420670 is about 1191.9186213832. The cubic root of 1420670 is about 112.4167614724.

The spelling of 1420670 in words is "one million, four hundred twenty thousand, six hundred seventy".