1378248235 has 36 divisors (see below), whose sum is σ = 2083362768. Its totient is φ = 872359488.

The previous prime is 1378248233. The next prime is 1378248241. The reversal of 1378248235 is 5328428731.

It is not a de Polignac number, because 1378248235 - 2¹ = 1378248233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1378248191 and 1378248200.

It is not an unprimeable number, because it can be changed into a prime (1378248233) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24762 + ... + 58048.

It is an arithmetic number, because the mean of its divisors is an integer number (57871188).

Almost surely, 2^1378248235 is an apocalyptic number.

1378248235 is a deficient number, since it is larger than the sum of its proper divisors (705114533).

1378248235 is a wasteful number, since it uses less digits than its factorization.

1378248235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33332 (or 33312 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 1378248235 is about 37124.7657905070. The cubic root of 1378248235 is about 1112.8649942386.

The spelling of 1378248235 in words is "one billion, three hundred seventy-eight million, two hundred forty-eight thousand, two hundred thirty-five".