1245025240 has 32 divisors (see below), whose sum is σ = 2807102880. Its totient is φ = 496979712.

The previous prime is 1245025237. The next prime is 1245025241. The reversal of 1245025240 is 425205421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245025241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12477 + ... + 51436.

It is an arithmetic number, because the mean of its divisors is an integer number (87721965).

Almost surely, 2^1245025240 is an apocalyptic number.

1245025240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245025240 is an abundant number, since it is smaller than the sum of its proper divisors (1562077640).

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

1245025240 is a wasteful number, since it uses less digits than its factorization.

1245025240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64411 (or 64407 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1245025240 is about 35284.9151904890. The cubic root of 1245025240 is about 1075.7864056433.

The spelling of 1245025240 in words is "one billion, two hundred forty-five million, twenty-five thousand, two hundred forty".