351004240 has 20 divisors (see below), whose sum is σ = 816085044. Its totient is φ = 140401664.

The previous prime is 351004201. The next prime is 351004249. The reversal of 351004240 is 42400153.

351004240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 117158976 + 233845264 = 10824^2 + 15292^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351004249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193697 + ... + 2193856.

Almost surely, 2^351004240 is an apocalyptic number.

It is an amenable number.

351004240 is an abundant number, since it is smaller than the sum of its proper divisors (465080804).

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

351004240 is a wasteful number, since it uses less digits than its factorization.

351004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387566 (or 4387560 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 351004240 is about 18735.1071520822. The cubic root of 351004240 is about 705.4032466635.

Adding to 351004240 its reverse (42400153), we get a palindrome (393404393).

It can be divided in two parts, 35100 and 4240, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 351004240 in words is "three hundred fifty-one million, four thousand, two hundred forty".