402031413 has 24 divisors (see below), whose sum is σ = 667525248. Its totient is φ = 228398112.

The previous prime is 402031411. The next prime is 402031439. The reversal of 402031413 is 314130204.

It is not a de Polignac number, because 402031413 - 2¹ = 402031411 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402031411) 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 in 23 ways as a sum of consecutive naturals, for example, 7545 + ... + 29342.

It is an arithmetic number, because the mean of its divisors is an integer number (27813552).

Almost surely, 2^402031413 is an apocalyptic number.

It is an amenable number.

402031413 is a deficient number, since it is larger than the sum of its proper divisors (265493835).

402031413 is a wasteful number, since it uses less digits than its factorization.

402031413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37073 (or 37070 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 402031413 is about 20050.7210094799. The cubic root of 402031413 is about 738.0514924302.

Adding to 402031413 its reverse (314130204), we get a palindrome (716161617).

It can be divided in two parts, 40203 and 1413, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 402031413 in words is "four hundred two million, thirty-one thousand, four hundred thirteen".