402344377 has 4 divisors (see below), whose sum is σ = 403717860. Its totient is φ = 400970896.

The previous prime is 402344363. The next prime is 402344387. The reversal of 402344377 is 773443204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 160883856 + 241460521 = 12684^2 + 15539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402344377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402344387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686302 + ... + 686887.

It is an arithmetic number, because the mean of its divisors is an integer number (100929465).

Almost surely, 2^402344377 is an apocalyptic number.

It is an amenable number.

402344377 is a deficient number, since it is larger than the sum of its proper divisors (1373483).

402344377 is a wasteful number, since it uses less digits than its factorization.

402344377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373482.

The product of its (nonzero) digits is 56448, while the sum is 34.

The square root of 402344377 is about 20058.5237991234. The cubic root of 402344377 is about 738.2429564376.

It can be divided in two parts, 4023 and 44377, that added together give a square (48400 = 220²).

The spelling of 402344377 in words is "four hundred two million, three hundred forty-four thousand, three hundred seventy-seven".