351730740 has 24 divisors (see below), whose sum is σ = 984846240. Its totient is φ = 93794848.

The previous prime is 351730739. The next prime is 351730777. The reversal of 351730740 is 47037153.

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 = 351730698 and 351730707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2931030 + ... + 2931149.

It is an arithmetic number, because the mean of its divisors is an integer number (41035260).

Almost surely, 2^351730740 is an apocalyptic number.

351730740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

351730740 is an abundant number, since it is smaller than the sum of its proper divisors (633115500).

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

351730740 is a wasteful number, since it uses less digits than its factorization.

351730740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862191 (or 5862189 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 351730740 is about 18754.4858633875. The cubic root of 351730740 is about 705.8895867478.

Adding to 351730740 its reverse (47037153), we get a palindrome (398767893).

The spelling of 351730740 in words is "three hundred fifty-one million, seven hundred thirty thousand, seven hundred forty".