1425402400 has 144 divisors (see below), whose sum is σ = 3712824864. Its totient is φ = 532500480.

The previous prime is 1425402379. The next prime is 1425402427. The reversal of 1425402400 is 42045241.

It is a happy 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, 2216479 + ... + 2217121.

It is an arithmetic number, because the mean of its divisors is an integer number (25783506).

Almost surely, 2^1425402400 is an apocalyptic number.

1425402400 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 1425402400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1856412432).

1425402400 is an abundant number, since it is smaller than the sum of its proper divisors (2287422464).

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

1425402400 is a wasteful number, since it uses less digits than its factorization.

1425402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1425402400 is about 37754.5017183382. The cubic root of 1425402400 is about 1125.4144711506.

Adding to 1425402400 its reverse (42045241), we get a palindrome (1467447641).

The spelling of 1425402400 in words is "one billion, four hundred twenty-five million, four hundred two thousand, four hundred".