351986401 has 16 divisors (see below), whose sum is σ = 383733504. Its totient is φ = 320935104.

The previous prime is 351986387. The next prime is 351986407. The reversal of 351986401 is 104689153.

It is a cyclic number.

It is not a de Polignac number, because 351986401 - 2¹⁹ = 351462113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351986407) 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, 427276 + ... + 428098.

It is an arithmetic number, because the mean of its divisors is an integer number (23983344).

Almost surely, 2^351986401 is an apocalyptic number.

It is an amenable number.

351986401 is a deficient number, since it is larger than the sum of its proper divisors (31747103).

351986401 is a wasteful number, since it uses less digits than its factorization.

351986401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 351986401 is about 18761.3006212256. The cubic root of 351986401 is about 706.0605742953.

The spelling of 351986401 in words is "three hundred fifty-one million, nine hundred eighty-six thousand, four hundred one".