402036549 has 8 divisors (see below), whose sum is σ = 536160672. Its totient is φ = 267968400.

The previous prime is 402036521. The next prime is 402036559. The reversal of 402036549 is 945630204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402036549 - 2¹⁹ = 401512261 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402036559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7474 + ... + 29324.

It is an arithmetic number, because the mean of its divisors is an integer number (67020084).

Almost surely, 2^402036549 is an apocalyptic number.

It is an amenable number.

402036549 is a deficient number, since it is larger than the sum of its proper divisors (134124123).

402036549 is a wasteful number, since it uses less digits than its factorization.

402036549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27987.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 402036549 is about 20050.8490842657. The cubic root of 402036549 is about 738.0546353159.

The spelling of 402036549 in words is "four hundred two million, thirty-six thousand, five hundred forty-nine".