402545130444 has 36 divisors (see below), whose sum is σ = 1017616316080. Its totient is φ = 134172257760.

The previous prime is 402545130343. The next prime is 402545130529. The reversal of 402545130444 is 444031545204.

402545130444 is a `hidden beast` number, since 40 + 2 + 5 + 45 + 130 + 444 = 666.

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 = 402545130399 and 402545130408.

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, 133977 + ... + 907215.

Almost surely, 2^402545130444 is an apocalyptic number.

It is an amenable number.

402545130444 is an abundant number, since it is smaller than the sum of its proper divisors (615071185636).

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

402545130444 is a wasteful number, since it uses less digits than its factorization.

402545130444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787710 (or 787705 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 402545130444 its reverse (444031545204), we get a palindrome (846576675648).

The spelling of 402545130444 in words is "four hundred two billion, five hundred forty-five million, one hundred thirty thousand, four hundred forty-four".