402361345 has 4 divisors (see below), whose sum is σ = 482833620. Its totient is φ = 321889072.

The previous prime is 402361339. The next prime is 402361357. The reversal of 402361345 is 543163204.

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 308213136 + 94148209 = 17556^2 + 9703^2 .

It is a cyclic number.

It is not a de Polignac number, because 402361345 - 2⁷ = 402361217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40236130 + ... + 40236139.

It is an arithmetic number, because the mean of its divisors is an integer number (120708405).

Almost surely, 2^402361345 is an apocalyptic number.

It is an amenable number.

402361345 is a deficient number, since it is larger than the sum of its proper divisors (80472275).

402361345 is an equidigital number, since it uses as much as digits as its factorization.

402361345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80472274.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 402361345 is about 20058.9467569960. The cubic root of 402361345 is about 738.2533342227.

The spelling of 402361345 in words is "four hundred two million, three hundred sixty-one thousand, three hundred forty-five".