353740680 has 48 divisors (see below), whose sum is σ = 1149658380. Its totient is φ = 94330752.

The previous prime is 353740679. The next prime is 353740687. The reversal of 353740680 is 86047353.

It is a happy number.

353740680 is a `hidden beast` number, since 3 + 537 + 40 + 6 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 350213796 + 3526884 = 18714^2 + 1878^2 .

It is a super-3 number, since 3×353740680³ (a number of 27 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (353740687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490947 + ... + 491666.

Almost surely, 2^353740680 is an apocalyptic number.

353740680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

353740680 is an abundant number, since it is smaller than the sum of its proper divisors (795917700).

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

353740680 is a wasteful number, since it uses less digits than its factorization.

353740680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982630 (or 982623 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 353740680 is about 18807.9951084638. The cubic root of 353740680 is about 707.2316187500.

The spelling of 353740680 in words is "three hundred fifty-three million, seven hundred forty thousand, six hundred eighty".