353387481 has 8 divisors (see below), whose sum is σ = 483918144. Its totient is φ = 229224240.

The previous prime is 353387473. The next prime is 353387491. The reversal of 353387481 is 184783353.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 353387481 - 2³ = 353387473 is a prime.

It is a super-2 number, since 2×353387481² = 249765423455050722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (353387491) 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, 1591725 + ... + 1591946.

It is an arithmetic number, because the mean of its divisors is an integer number (60489768).

Almost surely, 2^353387481 is an apocalyptic number.

It is an amenable number.

353387481 is a deficient number, since it is larger than the sum of its proper divisors (130530663).

353387481 is a wasteful number, since it uses less digits than its factorization.

353387481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183711.

The product of its digits is 241920, while the sum is 42.

The square root of 353387481 is about 18798.6031661930. The cubic root of 353387481 is about 706.9961574853.

The spelling of 353387481 in words is "three hundred fifty-three million, three hundred eighty-seven thousand, four hundred eighty-one".