8400653530 has 32 divisors (see below), whose sum is σ = 16443390096. Its totient is φ = 3077121024.

The previous prime is 8400653507. The next prime is 8400653537. The reversal of 8400653530 is 353560048.

It can be written as a sum of positive squares in 8 ways, for example, as 6168374521 + 2232279009 = 78539^2 + 47247^2 .

It is a super-2 number, since 2×8400653530² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (8400653537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661489 + ... + 674068.

Almost surely, 2^8400653530 is an apocalyptic number.

8400653530 is a deficient number, since it is larger than the sum of its proper divisors (8042736566).

8400653530 is a wasteful number, since it uses less digits than its factorization.

8400653530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335618.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 8400653530 is about 91655.0791282185. The cubic root of 8400653530 is about 2032.8454301603.

The spelling of 8400653530 in words is "eight billion, four hundred million, six hundred fifty-three thousand, five hundred thirty".