1423730 has 48 divisors (see below), whose sum is σ = 3271104. Its totient is φ = 433440.

The previous prime is 1423717. The next prime is 1423753. The reversal of 1423730 is 373241.

It is a super-2 number, since 2×1423730² = 4054014225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33089 + ... + 33131.

It is an arithmetic number, because the mean of its divisors is an integer number (68148).

2^1423730 is an apocalyptic number.

1423730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423730 is an abundant number, since it is smaller than the sum of its proper divisors (1847374).

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

1423730 is a wasteful number, since it uses less digits than its factorization.

1423730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1423730 is about 1193.2015755940. The cubic root of 1423730 is about 112.4974155785.

Adding to 1423730 its reverse (373241), we get a palindrome (1796971).

The spelling of 1423730 in words is "one million, four hundred twenty-three thousand, seven hundred thirty".