41978402 has 12 divisors (see below), whose sum is σ = 65067318. Its totient is φ = 20311200.

The previous prime is 41978401. The next prime is 41978411. The reversal of 41978402 is 20487914.

It can be written as a sum of positive squares in only one way, i.e., 41977441 + 961 = 6479^2 + 31^2 .

It is not an unprimeable number, because it can be changed into a prime (41978401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8999 + ... + 12842.

Almost surely, 2^41978402 is an apocalyptic number.

41978402 is a deficient number, since it is larger than the sum of its proper divisors (23088916).

41978402 is a wasteful number, since it uses less digits than its factorization.

41978402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21905 (or 21874 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 41978402 is about 6479.0741622550. The cubic root of 41978402 is about 347.5430707617.

The spelling of 41978402 in words is "forty-one million, nine hundred seventy-eight thousand, four hundred two".