402134906 has 8 divisors (see below), whose sum is σ = 603305940. Its totient is φ = 201032928.

The previous prime is 402134891. The next prime is 402134911. The reversal of 402134906 is 609431204.

It can be written as a sum of positive squares in 2 ways, for example, as 400200025 + 1934881 = 20005^2 + 1391^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280 + ... + 28388.

Almost surely, 2^402134906 is an apocalyptic number.

402134906 is a deficient number, since it is larger than the sum of its proper divisors (201171034).

402134906 is a wasteful number, since it uses less digits than its factorization.

402134906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34528.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 402134906 is about 20053.3016234235. The cubic root of 402134906 is about 738.1148180040.

The spelling of 402134906 in words is "four hundred two million, one hundred thirty-four thousand, nine hundred six".