351402057 has 14 divisors (see below), whose sum is σ = 526863162. Its totient is φ = 234267552.

The previous prime is 351402049. The next prime is 351402097. The reversal of 351402057 is 750204153.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 202464441 + 148937616 = 14229^2 + 12204^2 .

It is not a de Polignac number, because 351402057 - 2³ = 351402049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 351402057.

It is not an unprimeable number, because it can be changed into a prime (351402097) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 240288 + ... + 241745.

It is an arithmetic number, because the mean of its divisors is an integer number (37633083).

Almost surely, 2^351402057 is an apocalyptic number.

It is an amenable number.

351402057 is a deficient number, since it is larger than the sum of its proper divisors (175461105).

351402057 is an frugal number, since it uses more digits than its factorization.

351402057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482051 (or 482036 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 351402057 is about 18745.7210317448. The cubic root of 351402057 is about 705.6696398884.

The spelling of 351402057 in words is "three hundred fifty-one million, four hundred two thousand, fifty-seven".