402601236444 has 36 divisors (see below), whose sum is σ = 1110203410680. Its totient is φ = 122000374560.

The previous prime is 402601236437. The next prime is 402601236451. The reversal of 402601236444 is 444632106204.

402601236444 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 0 + 1 + 2 + 3 + 644 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (402601236437) and next prime (402601236451).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 402601236399 and 402601236408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508334499 + ... + 508335290.

It is an arithmetic number, because the mean of its divisors is an integer number (30838983630).

Almost surely, 2^402601236444 is an apocalyptic number.

402601236444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402601236444 is an abundant number, since it is smaller than the sum of its proper divisors (707602174236).

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

402601236444 is a wasteful number, since it uses less digits than its factorization.

402601236444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016669810 (or 1016669805 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 402601236444 in words is "four hundred two billion, six hundred one million, two hundred thirty-six thousand, four hundred forty-four".