139009380 has 24 divisors (see below), whose sum is σ = 389226432. Its totient is φ = 37069152.

The previous prime is 139009361. The next prime is 139009421. The reversal of 139009380 is 83900931.

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 7 ways as a sum of consecutive naturals, for example, 1158352 + ... + 1158471.

It is an arithmetic number, because the mean of its divisors is an integer number (16217768).

Almost surely, 2^139009380 is an apocalyptic number.

139009380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139009380 is an abundant number, since it is smaller than the sum of its proper divisors (250217052).

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

139009380 is a wasteful number, since it uses less digits than its factorization.

139009380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316835 (or 2316833 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 139009380 is about 11790.2239164487. The cubic root of 139009380 is about 518.0217985987.

The spelling of 139009380 in words is "one hundred thirty-nine million, nine thousand, three hundred eighty".