353689240 has 16 divisors (see below), whose sum is σ = 795800880. Its totient is φ = 141475680.

The previous prime is 353689229. The next prime is 353689337. The reversal of 353689240 is 42986353.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 8842231 = 353689240 / (3 + 5 + 3 + 6 + 8 + 9 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 353689193 and 353689202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4421076 + ... + 4421155.

It is an arithmetic number, because the mean of its divisors is an integer number (49737555).

Almost surely, 2^353689240 is an apocalyptic number.

It is an amenable number.

353689240 is an abundant number, since it is smaller than the sum of its proper divisors (442111640).

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

353689240 is a wasteful number, since it uses less digits than its factorization.

353689240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842242 (or 8842238 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 353689240 is about 18806.6275551998. The cubic root of 353689240 is about 707.1973358604.

The spelling of 353689240 in words is "three hundred fifty-three million, six hundred eighty-nine thousand, two hundred forty".