1154040404 has 18 divisors (see below), whose sum is σ = 2219859642. Its totient is φ = 524563600.

The previous prime is 1154040403. The next prime is 1154040431. The reversal of 1154040404 is 4040404511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1040191504 + 113848900 = 32252^2 + 10670^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1154040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154040403) 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 5 ways as a sum of consecutive naturals, for example, 1191707 + ... + 1192674.

Almost surely, 2^1154040404 is an apocalyptic number.

It is an amenable number.

1154040404 is a deficient number, since it is larger than the sum of its proper divisors (1065819238).

1154040404 is a wasteful number, since it uses less digits than its factorization.

1154040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384407 (or 2384394 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1154040404 is about 33971.1701888528. The cubic root of 1154040404 is about 1048.9151013487.

Adding to 1154040404 its reverse (4040404511), we get a palindrome (5194444915).

The spelling of 1154040404 in words is "one billion, one hundred fifty-four million, forty thousand, four hundred four".