1625828408 has 32 divisors (see below), whose sum is σ = 3070992000. Its totient is φ = 806918112.

The previous prime is 1625828401. The next prime is 1625828417. The reversal of 1625828408 is 8048285261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625828401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869891 + ... + 871757.

It is an arithmetic number, because the mean of its divisors is an integer number (95968500).

Almost surely, 2^1625828408 is an apocalyptic number.

It is an amenable number.

1625828408 is a deficient number, since it is larger than the sum of its proper divisors (1445163592).

1625828408 is a wasteful number, since it uses less digits than its factorization.

1625828408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 1625828408 is about 40321.5625689283. The cubic root of 1625828408 is about 1175.8670908921.

The spelling of 1625828408 in words is "one billion, six hundred twenty-five million, eight hundred twenty-eight thousand, four hundred eight".