1235745040 has 40 divisors (see below), whose sum is σ = 2876065920. Its totient is φ = 493789056.

The previous prime is 1235745031. The next prime is 1235745053. The reversal of 1235745040 is 405475321.

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

It is a junction number, because it is equal to n+sod(n) for n = 1235744993 and 1235745011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75687 + ... + 90553.

It is an arithmetic number, because the mean of its divisors is an integer number (71901648).

Almost surely, 2^1235745040 is an apocalyptic number.

1235745040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235745040 is an abundant number, since it is smaller than the sum of its proper divisors (1640320880).

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

1235745040 is a wasteful number, since it uses less digits than its factorization.

1235745040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15919 (or 15913 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1235745040 is about 35153.1654335708. The cubic root of 1235745040 is about 1073.1068290825.

The spelling of 1235745040 in words is "one billion, two hundred thirty-five million, seven hundred forty-five thousand, forty".