353172540 has 96 divisors (see below), whose sum is σ = 1145733120. Its totient is φ = 79612416.

The previous prime is 353172539. The next prime is 353172557. The reversal of 353172540 is 45271353.

353172540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 353172498 and 353172507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24901 + ... + 36419.

It is an arithmetic number, because the mean of its divisors is an integer number (11934720).

Almost surely, 2^353172540 is an apocalyptic number.

353172540 is a gapful number since it is divisible by the number (30) 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 353172540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572866560).

353172540 is an abundant number, since it is smaller than the sum of its proper divisors (792560580).

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

353172540 is a wasteful number, since it uses less digits than its factorization.

353172540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11611 (or 11609 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 353172540 is about 18792.8853559000. The cubic root of 353172540 is about 706.8527895686.

The spelling of 353172540 in words is "three hundred fifty-three million, one hundred seventy-two thousand, five hundred forty".