1287364342 has 32 divisors (see below), whose sum is σ = 2289024000. Its totient is φ = 536479200.

The previous prime is 1287364339. The next prime is 1287364343. The reversal of 1287364342 is 2434637821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1287364295 and 1287364304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287364343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36717 + ... + 62632.

It is an arithmetic number, because the mean of its divisors is an integer number (71532000).

Almost surely, 2^1287364342 is an apocalyptic number.

1287364342 is a deficient number, since it is larger than the sum of its proper divisors (1001659658).

1287364342 is a wasteful number, since it uses less digits than its factorization.

1287364342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99412.

The product of its digits is 193536, while the sum is 40.

The square root of 1287364342 is about 35879.8598380763. The cubic root of 1287364342 is about 1087.8453471744.

The spelling of 1287364342 in words is "one billion, two hundred eighty-seven million, three hundred sixty-four thousand, three hundred forty-two".