402134331 has 8 divisors (see below), whose sum is σ = 536361280. Its totient is φ = 267998472.

The previous prime is 402134311. The next prime is 402134347. The reversal of 402134331 is 133431204.

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

It is not a de Polignac number, because 402134331 - 2¹³ = 402126139 is a prime.

It is a super-2 number, since 2×402134331² = 323424040337635122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402134298 and 402134307.

It is not an unprimeable number, because it can be changed into a prime (402134311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11701 + ... + 30678.

It is an arithmetic number, because the mean of its divisors is an integer number (67045160).

Almost surely, 2^402134331 is an apocalyptic number.

402134331 is a deficient number, since it is larger than the sum of its proper divisors (134226949).

402134331 is a wasteful number, since it uses less digits than its factorization.

402134331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45545.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 402134331 is about 20053.2872866271. The cubic root of 402134331 is about 738.1144662015.

Adding to 402134331 its reverse (133431204), we get a palindrome (535565535).

It can be divided in two parts, 40213 and 4331, that added together give a palindrome (44544).

The spelling of 402134331 in words is "four hundred two million, one hundred thirty-four thousand, three hundred thirty-one".