1423560400 has 30 divisors (see below), whose sum is σ = 3420104822. Its totient is φ = 569424000.

The previous prime is 1423560379. The next prime is 1423560401. The reversal of 1423560400 is 40653241.

It can be written as a sum of positive squares in 3 ways, for example, as 340623936 + 1082936464 = 18456^2 + 32908^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423560401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1779051 + ... + 1779850.

Almost surely, 2^1423560400 is an apocalyptic number.

1423560400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423560400 is an abundant number, since it is smaller than the sum of its proper divisors (1996544422).

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

1423560400 is a wasteful number, since it uses less digits than its factorization.

1423560400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558919 (or 3558908 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1423560400 is about 37730.0993902746. The cubic root of 1423560400 is about 1124.9294836459.

The spelling of 1423560400 in words is "one billion, four hundred twenty-three million, five hundred sixty thousand, four hundred".