402034312 has 8 divisors (see below), whose sum is σ = 753814350. Its totient is φ = 201017152.

The previous prime is 402034307. The next prime is 402034313. The reversal of 402034312 is 213430204.

It can be written as a sum of positive squares in only one way, i.e., 393070276 + 8964036 = 19826^2 + 2994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 402034312.

It is not an unprimeable number, because it can be changed into a prime (402034313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25127137 + ... + 25127152.

Almost surely, 2^402034312 is an apocalyptic number.

It is an amenable number.

402034312 is a deficient number, since it is larger than the sum of its proper divisors (351780038).

402034312 is a wasteful number, since it uses less digits than its factorization.

402034312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50254295 (or 50254291 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402034312 is about 20050.7933010143. The cubic root of 402034312 is about 738.0532664260.

Adding to 402034312 its reverse (213430204), we get a palindrome (615464516).

The spelling of 402034312 in words is "four hundred two million, thirty-four thousand, three hundred twelve".