1290530472 has 64 divisors (see below), whose sum is σ = 4022438400. Its totient is φ = 335202240.

The previous prime is 1290530467. The next prime is 1290530477. The reversal of 1290530472 is 2740350921.

It is an interprime number because it is at equal distance from previous prime (1290530467) and next prime (1290530477).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1290530477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347322 + ... + 351017.

It is an arithmetic number, because the mean of its divisors is an integer number (62850600).

Almost surely, 2^1290530472 is an apocalyptic number.

1290530472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1290530472 is an abundant number, since it is smaller than the sum of its proper divisors (2731907928).

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

1290530472 is a wasteful number, since it uses less digits than its factorization.

1290530472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698366 (or 698362 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1290530472 is about 35923.9540140002. The cubic root of 1290530472 is about 1088.7364287786.

The spelling of 1290530472 in words is "one billion, two hundred ninety million, five hundred thirty thousand, four hundred seventy-two".