1290570420 has 24 divisors (see below), whose sum is σ = 3613597344. Its totient is φ = 344152096.

The previous prime is 1290570373. The next prime is 1290570427. The reversal of 1290570420 is 240750921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290570427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10754694 + ... + 10754813.

It is an arithmetic number, because the mean of its divisors is an integer number (150566556).

Almost surely, 2^1290570420 is an apocalyptic number.

1290570420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290570420 is an abundant number, since it is smaller than the sum of its proper divisors (2323026924).

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

1290570420 is a wasteful number, since it uses less digits than its factorization.

1290570420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21509519 (or 21509517 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1290570420 is about 35924.5100175354. The cubic root of 1290570420 is about 1088.7476625038.

The spelling of 1290570420 in words is "one billion, two hundred ninety million, five hundred seventy thousand, four hundred twenty".