1238302440 has 384 divisors, whose sum is σ = 4512568320. Its totient is φ = 293068800.

The previous prime is 1238302427. The next prime is 1238302463. The reversal of 1238302440 is 442038321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11572867 + ... + 11572973.

It is an arithmetic number, because the mean of its divisors is an integer number (11751480).

Almost surely, 2^1238302440 is an apocalyptic number.

1238302440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238302440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2256284160).

1238302440 is an abundant number, since it is smaller than the sum of its proper divisors (3274265880).

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

1238302440 is a wasteful number, since it uses less digits than its factorization.

1238302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1238302440 is about 35189.5217358804. The cubic root of 1238302440 is about 1073.8465912819.

The spelling of 1238302440 in words is "one billion, two hundred thirty-eight million, three hundred two thousand, four hundred forty".