402653045 has 4 divisors (see below), whose sum is σ = 483183660. Its totient is φ = 322122432.

The previous prime is 402652979. The next prime is 402653047. The reversal of 402653045 is 540356204.

402653045 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 221831236 + 180821809 = 14894^2 + 13447^2 .

It is a cyclic number.

It is not a de Polignac number, because 402653045 - 2¹² = 402648949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402652999 and 402653017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402653047) 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, 40265300 + ... + 40265309.

It is an arithmetic number, because the mean of its divisors is an integer number (120795915).

Almost surely, 2^402653045 is an apocalyptic number.

It is an amenable number.

402653045 is a deficient number, since it is larger than the sum of its proper divisors (80530615).

402653045 is an equidigital number, since it uses as much as digits as its factorization.

402653045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80530614.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 402653045 is about 20066.2165093472. The cubic root of 402653045 is about 738.4316950260.

The spelling of 402653045 in words is "four hundred two million, six hundred fifty-three thousand, forty-five".