1248355830 has 32 divisors (see below), whose sum is σ = 3029724000. Its totient is φ = 329153792.

The previous prime is 1248355819. The next prime is 1248355847. The reversal of 1248355830 is 385538421.

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, 231105 + ... + 236444.

It is an arithmetic number, because the mean of its divisors is an integer number (94678875).

Almost surely, 2^1248355830 is an apocalyptic number.

1248355830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248355830 is an abundant number, since it is smaller than the sum of its proper divisors (1781368170).

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

1248355830 is a wasteful number, since it uses less digits than its factorization.

1248355830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467648.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 1248355830 is about 35332.0793330933. The cubic root of 1248355830 is about 1076.7448368684.

The spelling of 1248355830 in words is "one billion, two hundred forty-eight million, three hundred fifty-five thousand, eight hundred thirty".