1425111408 has 120 divisors (see below), whose sum is σ = 4727003008. Its totient is φ = 407166912.

The previous prime is 1425111379. The next prime is 1425111409. The reversal of 1425111408 is 8041115241.

It is a happy number.

1425111408 is a `hidden beast` number, since 1 + 4 + 2 + 511 + 140 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425111409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035 + ... + 53397.

Almost surely, 2^1425111408 is an apocalyptic number.

1425111408 is a gapful number since it is divisible by the number (18) 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 1425111408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363501504).

1425111408 is an abundant number, since it is smaller than the sum of its proper divisors (3301891600).

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

1425111408 is an equidigital number, since it uses as much as digits as its factorization.

1425111408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52393 (or 52375 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1425111408 is about 37750.6477825216. The cubic root of 1425111408 is about 1125.3378825102.

Adding to 1425111408 its reverse (8041115241), we get a palindrome (9466226649).

The spelling of 1425111408 in words is "one billion, four hundred twenty-five million, one hundred eleven thousand, four hundred eight".