139896672 has 96 divisors (see below), whose sum is σ = 405844992. Its totient is φ = 41969664.

The previous prime is 139896661. The next prime is 139896683. The reversal of 139896672 is 276698931.

It is an interprime number because it is at equal distance from previous prime (139896661) and next prime (139896683).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35673 + ... + 39399.

It is an arithmetic number, because the mean of its divisors is an integer number (4227552).

Almost surely, 2^139896672 is an apocalyptic number.

139896672 is a gapful number since it is divisible by the number (12) 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 139896672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202922496).

139896672 is an abundant number, since it is smaller than the sum of its proper divisors (265948320).

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

139896672 is a wasteful number, since it uses less digits than its factorization.

139896672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780 (or 3772 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 139896672 is about 11827.7923552961. The cubic root of 139896672 is about 519.1216334991.

The spelling of 139896672 in words is "one hundred thirty-nine million, eight hundred ninety-six thousand, six hundred seventy-two".