1423340400 has 60 divisors (see below), whose sum is σ = 4559437592. Its totient is φ = 379557120.

The previous prime is 1423340363. The next prime is 1423340423. The reversal of 1423340400 is 40433241.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591859 + ... + 594258.

Almost surely, 2^1423340400 is an apocalyptic number.

1423340400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423340400 is an abundant number, since it is smaller than the sum of its proper divisors (3136097192).

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

1423340400 is a wasteful number, since it uses less digits than its factorization.

1423340400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186138 (or 1186127 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1423340400 is about 37727.1838334112. The cubic root of 1423340400 is about 1124.8715310091.

Adding to 1423340400 its reverse (40433241), we get a palindrome (1463773641).

The spelling of 1423340400 in words is "one billion, four hundred twenty-three million, three hundred forty thousand, four hundred".