1430020720 has 20 divisors (see below), whose sum is σ = 3324798360. Its totient is φ = 572008256.

The previous prime is 1430020717. The next prime is 1430020723. The reversal of 1430020720 is 270200341.

It is an interprime number because it is at equal distance from previous prime (1430020717) and next prime (1430020723).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430020723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8937550 + ... + 8937709.

It is an arithmetic number, because the mean of its divisors is an integer number (166239918).

Almost surely, 2^1430020720 is an apocalyptic number.

1430020720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430020720 is an abundant number, since it is smaller than the sum of its proper divisors (1894777640).

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

1430020720 is a wasteful number, since it uses less digits than its factorization.

1430020720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17875272 (or 17875266 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1430020720 is about 37815.6147642743. The cubic root of 1430020720 is about 1126.6286127144.

The spelling of 1430020720 in words is "one billion, four hundred thirty million, twenty thousand, seven hundred twenty".