378632534 has 16 divisors (see below), whose sum is σ = 687266208. Its totient is φ = 152725632.

The previous prime is 378632533. The next prime is 378632549. The reversal of 378632534 is 435236873.

It is a super-2 number, since 2×378632534² = 286725191606522312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378632491 and 378632500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378632533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795209 + ... + 795684.

It is an arithmetic number, because the mean of its divisors is an integer number (42954138).

Almost surely, 2^378632534 is an apocalyptic number.

378632534 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

378632534 is a deficient number, since it is larger than the sum of its proper divisors (308633674).

378632534 is a wasteful number, since it uses less digits than its factorization.

378632534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590919.

The product of its digits is 362880, while the sum is 41.

The square root of 378632534 is about 19458.4823149186. The cubic root of 378632534 is about 723.4457605667.

The spelling of 378632534 in words is "three hundred seventy-eight million, six hundred thirty-two thousand, five hundred thirty-four".