1425523340 has 24 divisors (see below), whose sum is σ = 3029670000. Its totient is φ = 563338688.

The previous prime is 1425523331. The next prime is 1425523361. The reversal of 1425523340 is 433255241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427715 + ... + 431034.

It is an arithmetic number, because the mean of its divisors is an integer number (126236250).

Almost surely, 2^1425523340 is an apocalyptic number.

1425523340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425523340 is an abundant number, since it is smaller than the sum of its proper divisors (1604146660).

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

1425523340 is a wasteful number, since it uses less digits than its factorization.

1425523340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858841 (or 858839 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1425523340 is about 37756.1033476708. The cubic root of 1425523340 is about 1125.4462993036.

Adding to 1425523340 its reverse (433255241), we get a palindrome (1858778581).

The spelling of 1425523340 in words is "one billion, four hundred twenty-five million, five hundred twenty-three thousand, three hundred forty".