351012620 has 24 divisors (see below), whose sum is σ = 842430624. Its totient is φ = 120347136.

The previous prime is 351012619. The next prime is 351012647. The reversal of 351012620 is 26210153.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 351012592 and 351012601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253477 + ... + 1253756.

It is an arithmetic number, because the mean of its divisors is an integer number (35101276).

Almost surely, 2^351012620 is an apocalyptic number.

It is an amenable number.

351012620 is an abundant number, since it is smaller than the sum of its proper divisors (491418004).

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

351012620 is a wasteful number, since it uses less digits than its factorization.

351012620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507249 (or 2507247 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 351012620 is about 18735.3307950514. The cubic root of 351012620 is about 705.4088603014.

Adding to 351012620 its reverse (26210153), we get a palindrome (377222773).

The spelling of 351012620 in words is "three hundred fifty-one million, twelve thousand, six hundred twenty".