1154004040 has 64 divisors (see below), whose sum is σ = 3039845760. Its totient is φ = 386004480.

The previous prime is 1154004017. The next prime is 1154004041. The reversal of 1154004040 is 404004511.

It is a junction number, because it is equal to n+sod(n) for n = 1154003999 and 1154004017.

It is not an unprimeable number, because it can be changed into a prime (1154004041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38782 + ... + 61741.

It is an arithmetic number, because the mean of its divisors is an integer number (47497590).

Almost surely, 2^1154004040 is an apocalyptic number.

1154004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154004040 is an abundant number, since it is smaller than the sum of its proper divisors (1885841720).

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

1154004040 is a wasteful number, since it uses less digits than its factorization.

1154004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100582 (or 100578 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1154004040 is about 33970.6349660998. The cubic root of 1154004040 is about 1048.9040840714.

Adding to 1154004040 its reverse (404004511), we get a palindrome (1558008551).

The spelling of 1154004040 in words is "one billion, one hundred fifty-four million, four thousand, forty".