1117061240 has 32 divisors (see below), whose sum is σ = 2622667680. Its totient is φ = 427396992.

The previous prime is 1117061221. The next prime is 1117061251. The reversal of 1117061240 is 421607111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606179 + ... + 608018.

It is an arithmetic number, because the mean of its divisors is an integer number (81958365).

Almost surely, 2^1117061240 is an apocalyptic number.

1117061240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1117061240 is an abundant number, since it is smaller than the sum of its proper divisors (1505606440).

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

1117061240 is a wasteful number, since it uses less digits than its factorization.

1117061240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214231 (or 1214227 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1117061240 is about 33422.4660969235. The cubic root of 1117061240 is about 1037.5897215677.

Adding to 1117061240 its reverse (421607111), we get a palindrome (1538668351).

The spelling of 1117061240 in words is "one billion, one hundred seventeen million, sixty-one thousand, two hundred forty".