1423100 has 72 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 457920.

The previous prime is 1423091. The next prime is 1423111. The reversal of 1423100 is 13241.

It is a happy number.

It is a super-2 number, since 2×1423100² = 4050427220000, which contains 22 as substring.

It is a congruent number.

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, 13247 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2^1423100 is an apocalyptic number.

1423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874880).

1423100 is an abundant number, since it is smaller than the sum of its proper divisors (2326660).

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

1423100 is a wasteful number, since it uses less digits than its factorization.

1423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1423100 is about 1192.9375507544. The cubic root of 1423100 is about 112.4808197754.

Adding to 1423100 its reverse (13241), we get a palindrome (1436341).

The spelling of 1423100 in words is "one million, four hundred twenty-three thousand, one hundred".