1290622480 has 160 divisors (see below), whose sum is σ = 3517417728. Its totient is φ = 431308800.

The previous prime is 1290622471. The next prime is 1290622517. The reversal of 1290622480 is 842260921.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5355160 + ... + 5355400.

Almost surely, 2^1290622480 is an apocalyptic number.

1290622480 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 1290622480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758708864).

1290622480 is an abundant number, since it is smaller than the sum of its proper divisors (2226795248).

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

1290622480 is a wasteful number, since it uses less digits than its factorization.

1290622480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1290622480 is about 35925.2345851770. The cubic root of 1290622480 is about 1088.7623018809.

The spelling of 1290622480 in words is "one billion, two hundred ninety million, six hundred twenty-two thousand, four hundred eighty".