139429038 has 32 divisors (see below), whose sum is σ = 319253760. Its totient is φ = 39767040.

The previous prime is 139429033. The next prime is 139429039. The reversal of 139429038 is 830924931.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 139428987 and 139429005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139429033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24333 + ... + 29511.

It is an arithmetic number, because the mean of its divisors is an integer number (9976680).

Almost surely, 2^139429038 is an apocalyptic number.

139429038 is an abundant number, since it is smaller than the sum of its proper divisors (179824722).

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

139429038 is a wasteful number, since it uses less digits than its factorization.

139429038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 139429038 is about 11808.0073678839. The cubic root of 139429038 is about 518.5425634449.

The spelling of 139429038 in words is "one hundred thirty-nine million, four hundred twenty-nine thousand, thirty-eight".