8402670549 has 96 divisors (see below), whose sum is σ = 15349478144. Its totient is φ = 4311014400.

The previous prime is 8402670547. The next prime is 8402670587. The reversal of 8402670549 is 9450762048.

It is a happy number.

8402670549 is a `hidden beast` number, since 8 + 40 + 2 + 67 + 0 + 549 = 666.

It is not a de Polignac number, because 8402670549 - 2¹ = 8402670547 is a prime.

It is a super-2 number, since 2×8402670549² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8402670547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13980849 + ... + 13981449.

Almost surely, 2^8402670549 is an apocalyptic number.

It is an amenable number.

8402670549 is a deficient number, since it is larger than the sum of its proper divisors (6946807595).

8402670549 is a wasteful number, since it uses less digits than its factorization.

8402670549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 8402670549 is about 91666.0817805583. The cubic root of 8402670549 is about 2033.0081143182.

The spelling of 8402670549 in words is "eight billion, four hundred two million, six hundred seventy thousand, five hundred forty-nine".