1425022400 has 84 divisors (see below), whose sum is σ = 3539048040. Its totient is φ = 564710400.

The previous prime is 1425022393. The next prime is 1425022411. The reversal of 1425022400 is 42205241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170315 + ... + 178485.

Almost surely, 2^1425022400 is an apocalyptic number.

1425022400 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 1425022400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769524020).

1425022400 is an abundant number, since it is smaller than the sum of its proper divisors (2114025640).

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

1425022400 is a wasteful number, since it uses less digits than its factorization.

1425022400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8302 (or 8287 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1425022400 is about 37749.4688704358. The cubic root of 1425022400 is about 1125.3144536613.

Adding to 1425022400 its reverse (42205241), we get a palindrome (1467227641).

The spelling of 1425022400 in words is "one billion, four hundred twenty-five million, twenty-two thousand, four hundred".