353505540 has 24 divisors (see below), whose sum is σ = 989815680. Its totient is φ = 94268128.

The previous prime is 353505533. The next prime is 353505541. The reversal of 353505540 is 45505353.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 353505498 and 353505507.

It is not an unprimeable number, because it can be changed into a prime (353505541) 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, 2945820 + ... + 2945939.

It is an arithmetic number, because the mean of its divisors is an integer number (41242320).

Almost surely, 2^353505540 is an apocalyptic number.

353505540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

353505540 is an abundant number, since it is smaller than the sum of its proper divisors (636310140).

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

353505540 is a wasteful number, since it uses less digits than its factorization.

353505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891771 (or 5891769 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 353505540 is about 18801.7430043068. The cubic root of 353505540 is about 707.0748793518.

The spelling of 353505540 in words is "three hundred fifty-three million, five hundred five thousand, five hundred forty".