1382436378 has 24 divisors (see below), whose sum is σ = 2996012916. Its totient is φ = 460699200.

The previous prime is 1382436373. The next prime is 1382436383. The reversal of 1382436378 is 8736342831.

1382436378 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 4 + 3 + 637 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1382436373) and next prime (1382436383).

It can be written as a sum of positive squares in 2 ways, for example, as 1240659729 + 141776649 = 35223^2 + 11907^2 .

It is a super-2 number, since 2×1382436378² = 3822260678435517768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1382436373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101238 + ... + 114078.

Almost surely, 2^1382436378 is an apocalyptic number.

1382436378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1382436378 is an abundant number, since it is smaller than the sum of its proper divisors (1613576538).

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

1382436378 is a wasteful number, since it uses less digits than its factorization.

1382436378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18830 (or 18827 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 1382436378 is about 37181.1293265818. The cubic root of 1382436378 is about 1113.9910914928.

The spelling of 1382436378 in words is "one billion, three hundred eighty-two million, four hundred thirty-six thousand, three hundred seventy-eight".