1177540940 has 24 divisors (see below), whose sum is σ = 2558107440. Its totient is φ = 454774208.

The previous prime is 1177540927. The next prime is 1177540943. The reversal of 1177540940 is 490457711.

It is a junction number, because it is equal to n+sod(n) for n = 1177540894 and 1177540903.

It is not an unprimeable number, because it can be changed into a prime (1177540943) 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, 1014542 + ... + 1015701.

It is an arithmetic number, because the mean of its divisors is an integer number (106587810).

Almost surely, 2^1177540940 is an apocalyptic number.

1177540940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1177540940 is an abundant number, since it is smaller than the sum of its proper divisors (1380566500).

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

1177540940 is a wasteful number, since it uses less digits than its factorization.

1177540940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030281 (or 2030279 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1177540940 is about 34315.3164053604. The cubic root of 1177540940 is about 1055.9872432554.

The spelling of 1177540940 in words is "one billion, one hundred seventy-seven million, five hundred forty thousand, nine hundred forty".