1939469172 has 24 divisors (see below), whose sum is σ = 4565479296. Its totient is φ = 640768128.

The previous prime is 1939469171. The next prime is 1939469173. The reversal of 1939469172 is 2719649391.

It is an interprime number because it is at equal distance from previous prime (1939469171) and next prime (1939469173).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939469171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713788 + ... + 716499.

It is an arithmetic number, because the mean of its divisors is an integer number (190228304).

Almost surely, 2^1939469172 is an apocalyptic number.

1939469172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1939469172 is an abundant number, since it is smaller than the sum of its proper divisors (2626010124).

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

1939469172 is a wasteful number, since it uses less digits than its factorization.

1939469172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430407 (or 1430405 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 1939469172 is about 44039.4047643698. The cubic root of 1939469172 is about 1247.0799406076.

The spelling of 1939469172 in words is "one billion, nine hundred thirty-nine million, four hundred sixty-nine thousand, one hundred seventy-two".