1378345435 has 8 divisors (see below), whose sum is σ = 1692480240. Its totient is φ = 1077032544.

The previous prime is 1378345429. The next prime is 1378345471. The reversal of 1378345435 is 5345438731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1378345435 - 2³ = 1378345427 is a prime.

It is a super-2 number, since 2×1378345435² = 3799672276370678450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 1378345391 and 1378345400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3205240 + ... + 3205669.

It is an arithmetic number, because the mean of its divisors is an integer number (211560030).

Almost surely, 2^1378345435 is an apocalyptic number.

1378345435 is a deficient number, since it is larger than the sum of its proper divisors (314134805).

1378345435 is an equidigital number, since it uses as much as digits as its factorization.

1378345435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410957.

The product of its digits is 604800, while the sum is 43.

The square root of 1378345435 is about 37126.0748665948. The cubic root of 1378345435 is about 1112.8911549674.

The spelling of 1378345435 in words is "one billion, three hundred seventy-eight million, three hundred forty-five thousand, four hundred thirty-five".