614720 has 56 divisors (see below), whose sum is σ = 1563624. Its totient is φ = 229376.

The previous prime is 614717. The next prime is 614729. The reversal of 614720 is 27416.

It can be written as a sum of positive squares in 4 ways, for example, as 12544 + 602176 = 112^2 + 776^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 614692 and 614701.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 614720.

It is not an unprimeable number, because it can be changed into a prime (614729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5384 + ... + 5496.

2⁶¹⁴⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 614720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781812).

614720 is an abundant number, since it is smaller than the sum of its proper divisors (948904).

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

614720 is a wasteful number, since it uses less digits than its factorization.

614720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 614720 is about 784.0408152641. The cubic root of 614720 is about 85.0274421198.

The spelling of 614720 in words is "six hundred fourteen thousand, seven hundred twenty".