402134245 has 8 divisors (see below), whose sum is σ = 486988920. Its totient is φ = 318755520.

The previous prime is 402134219. The next prime is 402134251. The reversal of 402134245 is 542431204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22118209 + 380016036 = 4703^2 + 19494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402134245 - 2¹¹ = 402132197 is a prime.

It is a congruent number.

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, 368386 + ... + 369475.

It is an arithmetic number, because the mean of its divisors is an integer number (60873615).

Almost surely, 2^402134245 is an apocalyptic number.

It is an amenable number.

402134245 is a deficient number, since it is larger than the sum of its proper divisors (84854675).

402134245 is a wasteful number, since it uses less digits than its factorization.

402134245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737975.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 402134245 is about 20053.2851423401. The cubic root of 402134245 is about 738.1144135840.

Adding to 402134245 its reverse (542431204), we get a palindrome (944565449).

The spelling of 402134245 in words is "four hundred two million, one hundred thirty-four thousand, two hundred forty-five".