402407383 has 4 divisors (see below), whose sum is σ = 459894160. Its totient is φ = 344920608.

The previous prime is 402407381. The next prime is 402407387. The reversal of 402407383 is 383704204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402407383 - 2¹ = 402407381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402407381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28743378 + ... + 28743391.

It is an arithmetic number, because the mean of its divisors is an integer number (114973540).

Almost surely, 2^402407383 is an apocalyptic number.

402407383 is a deficient number, since it is larger than the sum of its proper divisors (57486777).

402407383 is an equidigital number, since it uses as much as digits as its factorization.

402407383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57486776.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 402407383 is about 20060.0942919020. The cubic root of 402407383 is about 738.2814900178.

The spelling of 402407383 in words is "four hundred two million, four hundred seven thousand, three hundred eighty-three".