116428720 has 20 divisors (see below), whose sum is σ = 270696960. Its totient is φ = 46571456.

The previous prime is 116428717. The next prime is 116428723. The reversal of 116428720 is 27824611.

It is an interprime number because it is at equal distance from previous prime (116428717) and next prime (116428723).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (116428723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727600 + ... + 727759.

It is an arithmetic number, because the mean of its divisors is an integer number (13534848).

Almost surely, 2^116428720 is an apocalyptic number.

116428720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116428720 is an abundant number, since it is smaller than the sum of its proper divisors (154268240).

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

116428720 is a wasteful number, since it uses less digits than its factorization.

116428720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455372 (or 1455366 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 116428720 is about 10790.2140849939. The cubic root of 116428720 is about 488.2999812851.

The spelling of 116428720 in words is "one hundred sixteen million, four hundred twenty-eight thousand, seven hundred twenty".