1290470328 has 48 divisors (see below), whose sum is σ = 3994314480. Its totient is φ = 368705664.

The previous prime is 1290470287. The next prime is 1290470339. The reversal of 1290470328 is 8230740921.

1290470328 is a `hidden beast` number, since 1 + 290 + 47 + 0 + 328 = 666.

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 = 1290470292 and 1290470301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1279725 + ... + 1280732.

It is an arithmetic number, because the mean of its divisors is an integer number (83214885).

Almost surely, 2^1290470328 is an apocalyptic number.

1290470328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1290470328 is an abundant number, since it is smaller than the sum of its proper divisors (2703844152).

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

1290470328 is a wasteful number, since it uses less digits than its factorization.

1290470328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560476 (or 2560469 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1290470328 is about 35923.1169026297. The cubic root of 1290470328 is about 1088.7195153252.

The spelling of 1290470328 in words is "one billion, two hundred ninety million, four hundred seventy thousand, three hundred twenty-eight".