351878020 has 24 divisors (see below), whose sum is σ = 795786264. Its totient is φ = 129924096.

The previous prime is 351877997. The next prime is 351878039. The reversal of 351878020 is 20878153.

It can be written as a sum of positive squares in 4 ways, for example, as 21511044 + 330366976 = 4638^2 + 18176^2 .

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, 676429 + ... + 676948.

It is an arithmetic number, because the mean of its divisors is an integer number (33157761).

Almost surely, 2^351878020 is an apocalyptic number.

It is an amenable number.

351878020 is an abundant number, since it is smaller than the sum of its proper divisors (443908244).

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

351878020 is a wasteful number, since it uses less digits than its factorization.

351878020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353399 (or 1353397 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 351878020 is about 18758.4119796959. The cubic root of 351878020 is about 705.9880985723.

The spelling of 351878020 in words is "three hundred fifty-one million, eight hundred seventy-eight thousand, twenty".