1425649400 has 96 divisors (see below), whose sum is σ = 3816318240. Its totient is φ = 485160960.

The previous prime is 1425649387. The next prime is 1425649507. The reversal of 1425649400 is 49465241.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188084 + ... + 195516.

It is an arithmetic number, because the mean of its divisors is an integer number (39753315).

Almost surely, 2^1425649400 is an apocalyptic number.

1425649400 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 1425649400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908159120).

1425649400 is an abundant number, since it is smaller than the sum of its proper divisors (2390668840).

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

1425649400 is a wasteful number, since it uses less digits than its factorization.

1425649400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593 (or 7584 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1425649400 is about 37757.7727097349. The cubic root of 1425649400 is about 1125.4794729867.

The spelling of 1425649400 in words is "one billion, four hundred twenty-five million, six hundred forty-nine thousand, four hundred".