606709440 has 280 divisors, whose sum is σ = 2190719520. Its totient is φ = 159363072.

The previous prime is 606709427. The next prime is 606709451. The reversal of 606709440 is 44907606.

606709440 is a `hidden beast` number, since 606 + 7 + 0 + 9 + 4 + 40 = 666.

It is a super-2 number, since 2×606709440² = 736192689170227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 606709395 and 606709404.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 2306749 + ... + 2307011.

Almost surely, 2^606709440 is an apocalyptic number.

606709440 is a gapful number since it is divisible by the number (60) 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 606709440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095359760).

606709440 is an abundant number, since it is smaller than the sum of its proper divisors (1584010080).

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

606709440 is a wasteful number, since it uses less digits than its factorization.

606709440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 606709440 is about 24631.4725503775. The cubic root of 606709440 is about 846.5648860505.

The spelling of 606709440 in words is "six hundred six million, seven hundred nine thousand, four hundred forty".