1939479480 has 48 divisors (see below), whose sum is σ = 6303309480. Its totient is φ = 517194432.

The previous prime is 1939479449. The next prime is 1939479517. The reversal of 1939479480 is 849749391.

1939479480 is a `hidden beast` number, since 1 + 9 + 3 + 94 + 79 + 480 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2693362 + ... + 2694081.

Almost surely, 2^1939479480 is an apocalyptic number.

1939479480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1939479480 is an abundant number, since it is smaller than the sum of its proper divisors (4363830000).

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

1939479480 is a wasteful number, since it uses less digits than its factorization.

1939479480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387460 (or 5387453 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1939479480 is about 44039.5217957689. The cubic root of 1939479480 is about 1247.0821499539.

The spelling of 1939479480 in words is "one billion, nine hundred thirty-nine million, four hundred seventy-nine thousand, four hundred eighty".