139958444 has 12 divisors (see below), whose sum is σ = 248583384. Its totient is φ = 68934624.

The previous prime is 139958419. The next prime is 139958449. The reversal of 139958444 is 444859931.

It is a super-2 number, since 2×139958444² = 39176732093802272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139958449) 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 3 ways as a sum of consecutive naturals, for example, 260849 + ... + 261384.

It is an arithmetic number, because the mean of its divisors is an integer number (20715282).

Almost surely, 2^139958444 is an apocalyptic number.

It is an amenable number.

139958444 is a deficient number, since it is larger than the sum of its proper divisors (108624940).

139958444 is a wasteful number, since it uses less digits than its factorization.

139958444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522304 (or 522302 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 139958444 is about 11830.4033743571. The cubic root of 139958444 is about 519.1980290808.

The spelling of 139958444 in words is "one hundred thirty-nine million, nine hundred fifty-eight thousand, four hundred forty-four".