139907040 has 192 divisors, whose sum is σ = 542578176. Its totient is φ = 29509632.

The previous prime is 139907029. The next prime is 139907057. The reversal of 139907040 is 40709931.

139907040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139906992 and 139907010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42079 + ... + 45281.

It is an arithmetic number, because the mean of its divisors is an integer number (2825928).

Almost surely, 2^139907040 is an apocalyptic number.

139907040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139907040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271289088).

139907040 is an abundant number, since it is smaller than the sum of its proper divisors (402671136).

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

139907040 is a wasteful number, since it uses less digits than its factorization.

139907040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241 (or 3233 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 139907040 is about 11828.2306369127. The cubic root of 139907040 is about 519.1344575357.

The spelling of 139907040 in words is "one hundred thirty-nine million, nine hundred seven thousand, forty".