1117398542 has 32 divisors (see below), whose sum is σ = 1913611392. Its totient is φ = 484775424.

The previous prime is 1117398533. The next prime is 1117398563. The reversal of 1117398542 is 2458937111.

It is a self number, because there is not a number n which added to its sum of digits gives 1117398542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698888 + ... + 700484.

It is an arithmetic number, because the mean of its divisors is an integer number (59800356).

Almost surely, 2^1117398542 is an apocalyptic number.

1117398542 is a deficient number, since it is larger than the sum of its proper divisors (796212850).

1117398542 is a wasteful number, since it uses less digits than its factorization.

1117398542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212.

The product of its digits is 60480, while the sum is 41.

The square root of 1117398542 is about 33427.5117530456. The cubic root of 1117398542 is about 1037.6941461225.

The spelling of 1117398542 in words is "one billion, one hundred seventeen million, three hundred ninety-eight thousand, five hundred forty-two".