351420216 has 64 divisors (see below), whose sum is σ = 1036462080. Its totient is φ = 97165440.

The previous prime is 351420211. The next prime is 351420227. The reversal of 351420216 is 612024153.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351420211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28531 + ... + 38946.

It is an arithmetic number, because the mean of its divisors is an integer number (16194720).

Almost surely, 2^351420216 is an apocalyptic number.

It is an amenable number.

351420216 is an abundant number, since it is smaller than the sum of its proper divisors (685041864).

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

351420216 is a wasteful number, since it uses less digits than its factorization.

351420216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67524 (or 67520 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 351420216 is about 18746.2053760221. The cubic root of 351420216 is about 705.6817950385.

Adding to 351420216 its reverse (612024153), we get a palindrome (963444369).

The spelling of 351420216 in words is "three hundred fifty-one million, four hundred twenty thousand, two hundred sixteen".