402727045 has 16 divisors (see below), whose sum is σ = 570129408. Its totient is φ = 267246720.

The previous prime is 402727037. The next prime is 402727081. The reversal of 402727045 is 540727204.

It is not a de Polignac number, because 402727045 - 2³ = 402727037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402726998 and 402727016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184504 + ... + 186673.

It is an arithmetic number, because the mean of its divisors is an integer number (35633088).

Almost surely, 2^402727045 is an apocalyptic number.

It is an amenable number.

402727045 is a deficient number, since it is larger than the sum of its proper divisors (167402363).

402727045 is a wasteful number, since it uses less digits than its factorization.

402727045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371220.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 402727045 is about 20068.0603198216. The cubic root of 402727045 is about 738.4769288395.

The spelling of 402727045 in words is "four hundred two million, seven hundred twenty-seven thousand, forty-five".