1002355542 has 24 divisors (see below), whose sum is σ = 2222278344. Its totient is φ = 326348064.

The previous prime is 1002355517. The next prime is 1002355553. The reversal of 1002355542 is 2455532001.

It is a happy number.

1002355542 is a `hidden beast` number, since 100 + 2 + 3 + 5 + 554 + 2 = 666.

It is a super-2 number, since 2×1002355542² = 2009433265156227528, which contains 22 as substring.

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, 646743 + ... + 648290.

It is an arithmetic number, because the mean of its divisors is an integer number (92594931).

Almost surely, 2^1002355542 is an apocalyptic number.

1002355542 is an abundant number, since it is smaller than the sum of its proper divisors (1219922802).

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

1002355542 is a wasteful number, since it uses less digits than its factorization.

1002355542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295084 (or 1295081 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1002355542 is about 31659.9990840177. Note that the first 3 decimals coincide. The cubic root of 1002355542 is about 1000.7845649635.

Adding to 1002355542 its reverse (2455532001), we get a palindrome (3457887543).

The spelling of 1002355542 in words is "one billion, two million, three hundred fifty-five thousand, five hundred forty-two".