402080547 has 16 divisors (see below), whose sum is σ = 585849600. Its totient is φ = 243266400.

The previous prime is 402080543. The next prime is 402080557. The reversal of 402080547 is 745080204.

It is not a de Polignac number, because 402080547 - 2² = 402080543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402080543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9597 + ... + 29937.

It is an arithmetic number, because the mean of its divisors is an integer number (36615600).

Almost surely, 2^402080547 is an apocalyptic number.

402080547 is a deficient number, since it is larger than the sum of its proper divisors (183769053).

402080547 is a wasteful number, since it uses less digits than its factorization.

402080547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20954.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 402080547 is about 20051.9462147693. The cubic root of 402080547 is about 738.0815580285.

The spelling of 402080547 in words is "four hundred two million, eighty thousand, five hundred forty-seven".