1423532400 has 240 divisors, whose sum is σ = 4986252288. Its totient is φ = 345600000.

The previous prime is 1423532351. The next prime is 1423532437. The reversal of 1423532400 is 42353241.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 631275 + ... + 633525.

Almost surely, 2^1423532400 is an apocalyptic number.

1423532400 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 1423532400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493126144).

1423532400 is an abundant number, since it is smaller than the sum of its proper divisors (3562719888).

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

1423532400 is a wasteful number, since it uses less digits than its factorization.

1423532400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320 (or 2309 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1423532400 is about 37729.7283319135. The cubic root of 1423532400 is about 1124.9221081874.

Adding to 1423532400 its reverse (42353241), we get a palindrome (1465885641).

The spelling of 1423532400 in words is "one billion, four hundred twenty-three million, five hundred thirty-two thousand, four hundred".