378309436 has 6 divisors (see below), whose sum is σ = 662041520. Its totient is φ = 189154716.

The previous prime is 378309431. The next prime is 378309443. The reversal of 378309436 is 634903873.

It is a junction number, because it is equal to n+sod(n) for n = 378309392 and 378309401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378309431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47288676 + ... + 47288683.

Almost surely, 2^378309436 is an apocalyptic number.

It is an amenable number.

378309436 is a deficient number, since it is larger than the sum of its proper divisors (283732084).

378309436 is a wasteful number, since it uses less digits than its factorization.

378309436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94577363 (or 94577361 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 378309436 is about 19450.1783025246. The cubic root of 378309436 is about 723.2399230015.

The spelling of 378309436 in words is "three hundred seventy-eight million, three hundred nine thousand, four hundred thirty-six".