351663620 has 48 divisors (see below), whose sum is σ = 920723328. Its totient is φ = 109608960.

The previous prime is 351663617. The next prime is 351663623. The reversal of 351663620 is 26366153.

It is an interprime number because it is at equal distance from previous prime (351663617) and next prime (351663623).

It is not an unprimeable number, because it can be changed into a prime (351663623) 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, 112637 + ... + 115716.

It is an arithmetic number, because the mean of its divisors is an integer number (19181736).

Almost surely, 2^351663620 is an apocalyptic number.

It is an amenable number.

351663620 is an abundant number, since it is smaller than the sum of its proper divisors (569059708).

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

351663620 is a wasteful number, since it uses less digits than its factorization.

351663620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228380 (or 228378 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 351663620 is about 18752.6963394601. The cubic root of 351663620 is about 705.8446827746.

The spelling of 351663620 in words is "three hundred fifty-one million, six hundred sixty-three thousand, six hundred twenty".