139468784 has 40 divisors (see below), whose sum is σ = 332582880. Its totient is φ = 55173888.

The previous prime is 139468729. The next prime is 139468793. The reversal of 139468784 is 487864931.

139468784 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46439 + ... + 49350.

It is an arithmetic number, because the mean of its divisors is an integer number (8314572).

Almost surely, 2^139468784 is an apocalyptic number.

139468784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139468784 is an abundant number, since it is smaller than the sum of its proper divisors (193114096).

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

139468784 is a wasteful number, since it uses less digits than its factorization.

139468784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95817 (or 95811 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 139468784 is about 11809.6902584276. The cubic root of 139468784 is about 518.5918311225.

The spelling of 139468784 in words is "one hundred thirty-nine million, four hundred sixty-eight thousand, seven hundred eighty-four".