1929425285 has 16 divisors (see below), whose sum is σ = 2454955776. Its totient is φ = 1450699008.

The previous prime is 1929425279. The next prime is 1929425291. The reversal of 1929425285 is 5825249291.

It is an interprime number because it is at equal distance from previous prime (1929425279) and next prime (1929425291).

It is a cyclic number.

It is not a de Polignac number, because 1929425285 - 2⁴ = 1929425269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46184 + ... + 77406.

It is an arithmetic number, because the mean of its divisors is an integer number (153434736).

Almost surely, 2^1929425285 is an apocalyptic number.

It is an amenable number.

1929425285 is a deficient number, since it is larger than the sum of its proper divisors (525530491).

1929425285 is a wasteful number, since it uses less digits than its factorization.

1929425285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31972.

The product of its digits is 518400, while the sum is 47.

The square root of 1929425285 is about 43925.2237899820. The cubic root of 1929425285 is about 1244.9234717991.

The spelling of 1929425285 in words is "one billion, nine hundred twenty-nine million, four hundred twenty-five thousand, two hundred eighty-five".