40378852 has 6 divisors (see below), whose sum is σ = 70662998. Its totient is φ = 20189424.

The previous prime is 40378841. The next prime is 40378853. The reversal of 40378852 is 25887304.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 2359296 = 6166^2 + 1536^2 .

It is not an unprimeable number, because it can be changed into a prime (40378853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5047353 + ... + 5047360.

Almost surely, 2^40378852 is an apocalyptic number.

It is an amenable number.

40378852 is a deficient number, since it is larger than the sum of its proper divisors (30284146).

40378852 is a wasteful number, since it uses less digits than its factorization.

40378852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094717 (or 10094715 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 40378852 is about 6354.4356161661. The cubic root of 40378852 is about 343.0715114095.

The spelling of 40378852 in words is "forty million, three hundred seventy-eight thousand, eight hundred fifty-two".