1628802925 has 12 divisors (see below), whose sum is σ = 2028173760. Its totient is φ = 1297585520.

The previous prime is 1628802919. The next prime is 1628802971. The reversal of 1628802925 is 5292088261.

It is not a de Polignac number, because 1628802925 - 2¹⁷ = 1628671853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130327 + ... + 142276.

It is an arithmetic number, because the mean of its divisors is an integer number (169014480).

Almost surely, 2^1628802925 is an apocalyptic number.

It is an amenable number.

1628802925 is a deficient number, since it is larger than the sum of its proper divisors (399370835).

1628802925 is a wasteful number, since it uses less digits than its factorization.

1628802925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272852 (or 272847 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1628802925 is about 40358.4306558122. The cubic root of 1628802925 is about 1176.5837523755.

The spelling of 1628802925 in words is "one billion, six hundred twenty-eight million, eight hundred two thousand, nine hundred twenty-five".