402534949028 has 6 divisors (see below), whose sum is σ = 704436160806. Its totient is φ = 201267474512.

The previous prime is 402534949027. The next prime is 402534949043. The reversal of 402534949028 is 820949435204.

It can be written as a sum of positive squares in only one way, i.e., 399699599524 + 2835349504 = 632218^2 + 53248^2 .

It is not an unprimeable number, because it can be changed into a prime (402534949027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50316868625 + ... + 50316868632.

It is an arithmetic number, because the mean of its divisors is an integer number (117406026801).

Almost surely, 2^402534949028 is an apocalyptic number.

It is an amenable number.

402534949028 is a deficient number, since it is larger than the sum of its proper divisors (301901211778).

402534949028 is a wasteful number, since it uses less digits than its factorization.

402534949028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100633737261 (or 100633737259 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 402534949028 in words is "four hundred two billion, five hundred thirty-four million, nine hundred forty-nine thousand, twenty-eight".