1146649040 has 40 divisors (see below), whose sum is σ = 2670224928. Its totient is φ = 457925760.

The previous prime is 1146649027. The next prime is 1146649079. The reversal of 1146649040 is 409466411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40295 + ... + 62585.

Almost surely, 2^1146649040 is an apocalyptic number.

1146649040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146649040 is an abundant number, since it is smaller than the sum of its proper divisors (1523575888).

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

1146649040 is a wasteful number, since it uses less digits than its factorization.

1146649040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947 (or 22941 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1146649040 is about 33862.2066617047. The cubic root of 1146649040 is about 1046.6709498971.

It can be divided in two parts, 11466 and 49040, that added together give a palindrome (60506).

The spelling of 1146649040 in words is "one billion, one hundred forty-six million, six hundred forty-nine thousand, forty".