654531432 has 64 divisors (see below), whose sum is σ = 1680096000. Its totient is φ = 212419584.

The previous prime is 654531407. The next prime is 654531439. The reversal of 654531432 is 234135456.

It is a super-2 number, since 2×654531432² = 856822790951941248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654531393 and 654531402.

It is not an unprimeable number, because it can be changed into a prime (654531439) 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, 136044 + ... + 140772.

It is an arithmetic number, because the mean of its divisors is an integer number (26251500).

Almost surely, 2^654531432 is an apocalyptic number.

It is an amenable number.

654531432 is an abundant number, since it is smaller than the sum of its proper divisors (1025564568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654531432 is a wasteful number, since it uses less digits than its factorization.

654531432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890 (or 4886 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 654531432 is about 25583.8119130047. The cubic root of 654531432 is about 868.2474218034.

Adding to 654531432 its reverse (234135456), we get a palindrome (888666888).

The spelling of 654531432 in words is "six hundred fifty-four million, five hundred thirty-one thousand, four hundred thirty-two".