351640650 has 24 divisors (see below), whose sum is σ = 872069184. Its totient is φ = 93770800.

The previous prime is 351640633. The next prime is 351640651. The reversal of 351640650 is 56046153.

351640650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×351640650² = 247302293464845000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (351640651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171986 + ... + 1172285.

It is an arithmetic number, because the mean of its divisors is an integer number (36336216).

Almost surely, 2^351640650 is an apocalyptic number.

351640650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

351640650 is an abundant number, since it is smaller than the sum of its proper divisors (520428534).

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

351640650 is a wasteful number, since it uses less digits than its factorization.

351640650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344286 (or 2344281 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 351640650 is about 18752.0838841980. The cubic root of 351640650 is about 705.8293142951.

The spelling of 351640650 in words is "three hundred fifty-one million, six hundred forty thousand, six hundred fifty".