402016474378 has 4 divisors (see below), whose sum is σ = 603024711570. Its totient is φ = 201008237188.

The previous prime is 402016474373. The next prime is 402016474393. The reversal of 402016474378 is 873474610204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 243012519369 + 159003955009 = 492963^2 + 398753^2 .

It is not an unprimeable number, because it can be changed into a prime (402016474373) by changing a digit.

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 as a sum of consecutive naturals, namely, 100504118593 + ... + 100504118596.

Almost surely, 2^402016474378 is an apocalyptic number.

402016474378 is a deficient number, since it is larger than the sum of its proper divisors (201008237192).

402016474378 is a wasteful number, since it uses less digits than its factorization.

402016474378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201008237191.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 402016474378 in words is "four hundred two billion, sixteen million, four hundred seventy-four thousand, three hundred seventy-eight".