139448826 has 24 divisors (see below), whose sum is σ = 329606784. Its totient is φ = 42257160.

The previous prime is 139448821. The next prime is 139448833. The reversal of 139448826 is 628844931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (139448821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351946 + ... + 352341.

It is an arithmetic number, because the mean of its divisors is an integer number (13733616).

Almost surely, 2^139448826 is an apocalyptic number.

139448826 is an abundant number, since it is smaller than the sum of its proper divisors (190157958).

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

139448826 is a wasteful number, since it uses less digits than its factorization.

139448826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704306 (or 704303 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 139448826 is about 11808.8452441380. The cubic root of 139448826 is about 518.5670930910.

The spelling of 139448826 in words is "one hundred thirty-nine million, four hundred forty-eight thousand, eight hundred twenty-six".