1153907940 has 48 divisors (see below), whose sum is σ = 3233216448. Its totient is φ = 307492224.

The previous prime is 1153907921. The next prime is 1153907971. The reversal of 1153907940 is 497093511.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90819 + ... + 102741.

It is an arithmetic number, because the mean of its divisors is an integer number (67358676).

Almost surely, 2^1153907940 is an apocalyptic number.

1153907940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153907940 is an abundant number, since it is smaller than the sum of its proper divisors (2079308508).

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

1153907940 is a wasteful number, since it uses less digits than its factorization.

1153907940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 1153907940 is about 33969.2204797225. The cubic root of 1153907940 is about 1048.8749673390.

The spelling of 1153907940 in words is "one billion, one hundred fifty-three million, nine hundred seven thousand, nine hundred forty".