654153408 has 140 divisors (see below), whose sum is σ = 1950625512. Its totient is φ = 216760320.

The previous prime is 654153371. The next prime is 654153427. The reversal of 654153408 is 804351456.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1332043 + ... + 1332533.

Almost surely, 2^654153408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654153408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975312756).

654153408 is an abundant number, since it is smaller than the sum of its proper divisors (1296472104).

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

654153408 is a wasteful number, since it uses less digits than its factorization.

654153408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 654153408 is about 25576.4228929692. The cubic root of 654153408 is about 868.0802377920.

The spelling of 654153408 in words is "six hundred fifty-four million, one hundred fifty-three thousand, four hundred eight".