402095549 has 4 divisors (see below), whose sum is σ = 402721536. Its totient is φ = 401469564.

The previous prime is 402095531. The next prime is 402095557. The reversal of 402095549 is 945590204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402095549 - 2¹² = 402091453 is a prime.

It is a super-2 number, since 2×402095549² = 323361661051222802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402095149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312029 + ... + 313314.

It is an arithmetic number, because the mean of its divisors is an integer number (100680384).

Almost surely, 2^402095549 is an apocalyptic number.

It is an amenable number.

402095549 is a deficient number, since it is larger than the sum of its proper divisors (625987).

402095549 is an equidigital number, since it uses as much as digits as its factorization.

402095549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625986.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 402095549 is about 20052.3202896822. The cubic root of 402095549 is about 738.0907374179.

The spelling of 402095549 in words is "four hundred two million, ninety-five thousand, five hundred forty-nine".