147630240 has 144 divisors (see below), whose sum is σ = 507773448. Its totient is φ = 39057408.

The previous prime is 147630239. The next prime is 147630253. The reversal of 147630240 is 42036741.

147630240 is a `hidden beast` number, since 1 + 4 + 7 + 630 + 24 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 84713616 + 62916624 = 9204^2 + 7932^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225754 + ... + 226406.

Almost surely, 2^147630240 is an apocalyptic number.

147630240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147630240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253886724).

147630240 is an abundant number, since it is smaller than the sum of its proper divisors (360143208).

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

147630240 is a wasteful number, since it uses less digits than its factorization.

147630240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 147630240 is about 12150.3185143436. The cubic root of 147630240 is about 528.5163681211.

Adding to 147630240 its reverse (42036741), we get a palindrome (189666981).

The spelling of 147630240 in words is "one hundred forty-seven million, six hundred thirty thousand, two hundred forty".