287406401442 has 16 divisors (see below), whose sum is σ = 576218218080. Its totient is φ = 95567897952.

The previous prime is 287406401417. The next prime is 287406401449. The reversal of 287406401442 is 244104604782.

It is a junction number, because it is equal to n+sod(n) for n = 287406401394 and 287406401403.

It is not an unprimeable number, because it can be changed into a prime (287406401449) 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, 58556308 + ... + 58561215.

It is an arithmetic number, because the mean of its divisors is an integer number (36013638630).

Almost surely, 2^287406401442 is an apocalyptic number.

287406401442 is an abundant number, since it is smaller than the sum of its proper divisors (288811816638).

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

287406401442 is a wasteful number, since it uses less digits than its factorization.

287406401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117117937.

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 287406401442 in words is "two hundred eighty-seven billion, four hundred six million, four hundred one thousand, four hundred forty-two".