1250345040 has 80 divisors (see below), whose sum is σ = 4429799808. Its totient is φ = 285792768.

The previous prime is 1250345029. The next prime is 1250345123. The reversal of 1250345040 is 405430521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1250345040.

It is a congruent number.

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, 370447 + ... + 373806.

Almost surely, 2^1250345040 is an apocalyptic number.

1250345040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250345040 is an abundant number, since it is smaller than the sum of its proper divisors (3179454768).

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

1250345040 is a wasteful number, since it uses less digits than its factorization.

1250345040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744276 (or 744270 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1250345040 is about 35360.2183251178. The cubic root of 1250345040 is about 1077.3164513837.

Adding to 1250345040 its reverse (405430521), we get a palindrome (1655775561).

The spelling of 1250345040 in words is "one billion, two hundred fifty million, three hundred forty-five thousand, forty".