1332403280 has 40 divisors (see below), whose sum is σ = 3336135432. Its totient is φ = 491963904.

The previous prime is 1332403249. The next prime is 1332403301. The reversal of 1332403280 is 823042331.

It can be written as a sum of positive squares in 4 ways, for example, as 71301136 + 1261102144 = 8444^2 + 35512^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639539 + ... + 641618.

Almost surely, 2^1332403280 is an apocalyptic number.

1332403280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332403280 is an abundant number, since it is smaller than the sum of its proper divisors (2003732152).

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

1332403280 is a wasteful number, since it uses less digits than its factorization.

1332403280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281183 (or 1281177 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1332403280 is about 36502.0996656357. The cubic root of 1332403280 is about 1100.3864427347.

The spelling of 1332403280 in words is "one billion, three hundred thirty-two million, four hundred three thousand, two hundred eighty".