139789470 has 64 divisors (see below), whose sum is σ = 360619776. Its totient is φ = 34552320.

The previous prime is 139789439. The next prime is 139789493. The reversal of 139789470 is 74987931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32125 + ... + 36215.

It is an arithmetic number, because the mean of its divisors is an integer number (5634684).

Almost surely, 2^139789470 is an apocalyptic number.

139789470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139789470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180309888).

139789470 is an abundant number, since it is smaller than the sum of its proper divisors (220830306).

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

139789470 is a wasteful number, since it uses less digits than its factorization.

139789470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 139789470 is about 11823.2597028062. The cubic root of 139789470 is about 518.9889996592.

The spelling of 139789470 in words is "one hundred thirty-nine million, seven hundred eighty-nine thousand, four hundred seventy".