402140334 has 16 divisors (see below), whose sum is σ = 804643200. Its totient is φ = 133986360.

The previous prime is 402140327. The next prime is 402140363. The reversal of 402140334 is 433041204.

It is a self number, because there is not a number n which added to its sum of digits gives 402140334.

It is a congruent number.

It is an unprimeable number.

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, 567 + ... + 28365.

It is an arithmetic number, because the mean of its divisors is an integer number (50290200).

Almost surely, 2^402140334 is an apocalyptic number.

402140334 is an abundant number, since it is smaller than the sum of its proper divisors (402502866).

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

402140334 is a wasteful number, since it uses less digits than its factorization.

402140334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30215.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402140334 is about 20053.4369622766. The cubic root of 402140334 is about 738.1181390033.

Adding to 402140334 its reverse (433041204), we get a palindrome (835181538).

The spelling of 402140334 in words is "four hundred two million, one hundred forty thousand, three hundred thirty-four".