1025836408 has 8 divisors (see below), whose sum is σ = 1923443280. Its totient is φ = 512918200.

The previous prime is 1025836403. The next prime is 1025836417. The reversal of 1025836408 is 8046385201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025836403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64114768 + ... + 64114783.

It is an arithmetic number, because the mean of its divisors is an integer number (240430410).

Almost surely, 2^1025836408 is an apocalyptic number.

It is an amenable number.

1025836408 is a deficient number, since it is larger than the sum of its proper divisors (897606872).

1025836408 is a wasteful number, since it uses less digits than its factorization.

1025836408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128229557 (or 128229553 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1025836408 is about 32028.6810218591. The cubic root of 1025836408 is about 1008.5390137049.

The spelling of 1025836408 in words is "one billion, twenty-five million, eight hundred thirty-six thousand, four hundred eight".