402131416 has 8 divisors (see below), whose sum is σ = 753996420. Its totient is φ = 201065704.

The previous prime is 402131393. The next prime is 402131417. The reversal of 402131416 is 614131204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402131417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25133206 + ... + 25133221.

Almost surely, 2^402131416 is an apocalyptic number.

It is an amenable number.

402131416 is a deficient number, since it is larger than the sum of its proper divisors (351865004).

402131416 is a wasteful number, since it uses less digits than its factorization.

402131416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50266433 (or 50266429 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 402131416 is about 20053.2146051450. The cubic root of 402131416 is about 738.1126827105.

The spelling of 402131416 in words is "four hundred two million, one hundred thirty-one thousand, four hundred sixteen".