117621340 has 24 divisors (see below), whose sum is σ = 252750960. Its totient is φ = 45954048.

The previous prime is 117621337. The next prime is 117621349. The reversal of 117621340 is 43126711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117621349) 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, 67525 + ... + 69244.

It is an arithmetic number, because the mean of its divisors is an integer number (10531290).

Almost surely, 2^117621340 is an apocalyptic number.

117621340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117621340 is an abundant number, since it is smaller than the sum of its proper divisors (135129620).

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

117621340 is a wasteful number, since it uses less digits than its factorization.

117621340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136821 (or 136819 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 117621340 is about 10845.3372469463. The cubic root of 117621340 is about 489.9615963238.

The spelling of 117621340 in words is "one hundred seventeen million, six hundred twenty-one thousand, three hundred forty".