1332908640 has 144 divisors (see below), whose sum is σ = 5198383008. Its totient is φ = 304662528.

The previous prime is 1332908617. The next prime is 1332908657. The reversal of 1332908640 is 468092331.

1332908640 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 9 + 0 + 8 + 640 = 666.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 1332908595 and 1332908604.

It is a congruent number.

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, 56037 + ... + 76196.

It is an arithmetic number, because the mean of its divisors is an integer number (36099882).

Almost surely, 2^1332908640 is an apocalyptic number.

1332908640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332908640 is an abundant number, since it is smaller than the sum of its proper divisors (3865474368).

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

1332908640 is a wasteful number, since it uses less digits than its factorization.

1332908640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132261 (or 132250 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1332908640 is about 36509.0213508935. The cubic root of 1332908640 is about 1100.5255450146.

The spelling of 1332908640 in words is "one billion, three hundred thirty-two million, nine hundred eight thousand, six hundred forty".