1420770 has 32 divisors (see below), whose sum is σ = 3673152. Its totient is φ = 349632.

The previous prime is 1420753. The next prime is 1420777. The reversal of 1420770 is 770241.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1420777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (114786).

2^1420770 is an apocalyptic number.

1420770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420770 is an abundant number, since it is smaller than the sum of its proper divisors (2252382).

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

1420770 is a wasteful number, since it uses less digits than its factorization.

1420770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 1420770 is about 1191.9605698176. The cubic root of 1420770 is about 112.4193990571.

The spelling of 1420770 in words is "one million, four hundred twenty thousand, seven hundred seventy".