402248261812 has 24 divisors (see below), whose sum is σ = 744219408800. Its totient is φ = 189706595616.

The previous prime is 402248261801. The next prime is 402248261819. The reversal of 402248261812 is 218162842204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402248261819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11538798 + ... + 11573605.

Almost surely, 2^402248261812 is an apocalyptic number.

It is an amenable number.

402248261812 is a deficient number, since it is larger than the sum of its proper divisors (341971146988).

402248261812 is a wasteful number, since it uses less digits than its factorization.

402248261812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23112655 (or 23112653 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 402248261812 in words is "four hundred two billion, two hundred forty-eight million, two hundred sixty-one thousand, eight hundred twelve".