351403420 has 24 divisors (see below), whose sum is σ = 739418400. Its totient is φ = 140281152.

The previous prime is 351403391. The next prime is 351403427. The reversal of 351403420 is 24304153.

It is a junction number, because it is equal to n+sod(n) for n = 351403391 and 351403400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351403427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7080 + ... + 27439.

It is an arithmetic number, because the mean of its divisors is an integer number (30809100).

Almost surely, 2^351403420 is an apocalyptic number.

It is an amenable number.

351403420 is an abundant number, since it is smaller than the sum of its proper divisors (388014980).

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

351403420 is a wasteful number, since it uses less digits than its factorization.

351403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35037 (or 35035 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 351403420 is about 18745.7573866729. The cubic root of 351403420 is about 705.6705522587.

Adding to 351403420 its reverse (24304153), we get a palindrome (375707573).

The spelling of 351403420 in words is "three hundred fifty-one million, four hundred three thousand, four hundred twenty".