119721040 has 40 divisors (see below), whose sum is σ = 282926088. Its totient is φ = 47101440.

The previous prime is 119721029. The next prime is 119721047. The reversal of 119721040 is 40127911.

It can be written as a sum of positive squares in 4 ways, for example, as 10810944 + 108910096 = 3288^2 + 10436^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 119720996 and 119721014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119721047) by changing a digit.

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, 7387 + ... + 17146.

Almost surely, 2^119721040 is an apocalyptic number.

119721040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

119721040 is an abundant number, since it is smaller than the sum of its proper divisors (163205048).

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

119721040 is a wasteful number, since it uses less digits than its factorization.

119721040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24607 (or 24601 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 119721040 is about 10941.7110179350. The cubic root of 119721040 is about 492.8599102474.

Adding to 119721040 its reverse (40127911), we get a palindrome (159848951).

The spelling of 119721040 in words is "one hundred nineteen million, seven hundred twenty-one thousand, forty".