1423040 has 28 divisors (see below), whose sum is σ = 3389376. Its totient is φ = 569088.

The previous prime is 1423039. The next prime is 1423061. The reversal of 1423040 is 403241.

It is a nialpdrome in base 8.

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, 1904 + ... + 2543.

2^1423040 is an apocalyptic number.

1423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423040 is an abundant number, since it is smaller than the sum of its proper divisors (1966336).

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

1423040 is an equidigital number, since it uses as much as digits as its factorization.

1423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464 (or 4454 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1423040 is about 1192.9124024839. The cubic root of 1423040 is about 112.4792389673.

Adding to 1423040 its reverse (403241), we get a palindrome (1826281).

The spelling of 1423040 in words is "one million, four hundred twenty-three thousand, forty".