402134028 has 48 divisors (see below), whose sum is σ = 947710176. Its totient is φ = 132710400.

The previous prime is 402134017. The next prime is 402134053. The reversal of 402134028 is 820431204.

It is a junction number, because it is equal to n+sod(n) for n = 402133989 and 402134007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928500 + ... + 928932.

It is an arithmetic number, because the mean of its divisors is an integer number (19743962).

Almost surely, 2^402134028 is an apocalyptic number.

It is an amenable number.

402134028 is an abundant number, since it is smaller than the sum of its proper divisors (545576148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402134028 is a wasteful number, since it uses less digits than its factorization.

402134028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 402134028 is about 20053.2797317546. The cubic root of 402134028 is about 738.1142808167.

The spelling of 402134028 in words is "four hundred two million, one hundred thirty-four thousand, twenty-eight".