1245438230 has 32 divisors (see below), whose sum is σ = 2263361184. Its totient is φ = 493399296.

The previous prime is 1245438211. The next prime is 1245438269. The reversal of 1245438230 is 328345421.

It is a super-2 number, since 2×1245438230² = 3102232769491065800, which contains 22 as substring.

It is a Curzon number.

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, 839069 + ... + 840551.

It is an arithmetic number, because the mean of its divisors is an integer number (70730037).

Almost surely, 2^1245438230 is an apocalyptic number.

1245438230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245438230 is a deficient number, since it is larger than the sum of its proper divisors (1017922954).

1245438230 is a wasteful number, since it uses less digits than its factorization.

1245438230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1245438230 is about 35290.7669228086. The cubic root of 1245438230 is about 1075.9053429674.

The spelling of 1245438230 in words is "one billion, two hundred forty-five million, four hundred thirty-eight thousand, two hundred thirty".