654132402 has 128 divisors (see below), whose sum is σ = 1842739200. Its totient is φ = 167054400.

The previous prime is 654132377. The next prime is 654132421. The reversal of 654132402 is 204231456.

654132402 is a `hidden beast` number, since 6 + 5 + 413 + 240 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252349 + ... + 254927.

It is an arithmetic number, because the mean of its divisors is an integer number (14396400).

Almost surely, 2^654132402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654132402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921369600).

654132402 is an abundant number, since it is smaller than the sum of its proper divisors (1188606798).

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

654132402 is a wasteful number, since it uses less digits than its factorization.

654132402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 654132402 is about 25576.0122380327. The cubic root of 654132402 is about 868.0709458388.

Adding to 654132402 its reverse (204231456), we get a palindrome (858363858).

The spelling of 654132402 in words is "six hundred fifty-four million, one hundred thirty-two thousand, four hundred two".