116354640 has 80 divisors (see below), whose sum is σ = 370476288. Its totient is φ = 30187008.

The previous prime is 116354639. The next prime is 116354653. The reversal of 116354640 is 46453611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 116354598 and 116354607.

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, 2329 + ... + 15431.

Almost surely, 2^116354640 is an apocalyptic number.

116354640 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 116354640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185238144).

116354640 is an abundant number, since it is smaller than the sum of its proper divisors (254121648).

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

116354640 is a wasteful number, since it uses less digits than its factorization.

116354640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156 (or 13150 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 116354640 is about 10786.7807987369. The cubic root of 116354640 is about 488.1963959117.

The spelling of 116354640 in words is "one hundred sixteen million, three hundred fifty-four thousand, six hundred forty".