1025901408 has 48 divisors (see below), whose sum is σ = 3077706240. Its totient is φ = 293114496.

The previous prime is 1025901389. The next prime is 1025901413. The reversal of 1025901408 is 8041095201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent 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, 762648 + ... + 763991.

It is an arithmetic number, because the mean of its divisors is an integer number (64118880).

Almost surely, 2^1025901408 is an apocalyptic number.

It is an amenable number.

1025901408 is an abundant number, since it is smaller than the sum of its proper divisors (2051804832).

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

1025901408 is a wasteful number, since it uses less digits than its factorization.

1025901408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526659 (or 1526651 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1025901408 is about 32029.6957213146. The cubic root of 1025901408 is about 1008.5603145838.

Adding to 1025901408 its reverse (8041095201), we get a palindrome (9066996609).

The spelling of 1025901408 in words is "one billion, twenty-five million, nine hundred one thousand, four hundred eight".