402134401 has 8 divisors (see below), whose sum is σ = 404164224. Its totient is φ = 400110480.

The previous prime is 402134399. The next prime is 402134413. The reversal of 402134401 is 104431204.

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

It is a cyclic number.

It is not a de Polignac number, because 402134401 - 2¹ = 402134399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402134431) 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, 193896 + ... + 195958.

It is an arithmetic number, because the mean of its divisors is an integer number (50520528).

Almost surely, 2^402134401 is an apocalyptic number.

It is an amenable number.

402134401 is a deficient number, since it is larger than the sum of its proper divisors (2029823).

402134401 is a wasteful number, since it uses less digits than its factorization.

402134401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402134401 is about 20053.2890319768. The cubic root of 402134401 is about 738.1145090296.

Adding to 402134401 its reverse (104431204), we get a palindrome (506565605).

The spelling of 402134401 in words is "four hundred two million, one hundred thirty-four thousand, four hundred one".