1298900420 has 24 divisors (see below), whose sum is σ = 2871254400. Its totient is φ = 492214752.

The previous prime is 1298900417. The next prime is 1298900423. The reversal of 1298900420 is 240098921.

It is an interprime number because it is at equal distance from previous prime (1298900417) and next prime (1298900423).

It is not an unprimeable number, because it can be changed into a prime (1298900423) 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, 1708700 + ... + 1709459.

It is an arithmetic number, because the mean of its divisors is an integer number (119635600).

Almost surely, 2^1298900420 is an apocalyptic number.

1298900420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298900420 is an abundant number, since it is smaller than the sum of its proper divisors (1572353980).

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

1298900420 is a wasteful number, since it uses less digits than its factorization.

1298900420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418187 (or 3418185 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1298900420 is about 36040.2610978334. The cubic root of 1298900420 is about 1091.0850850358.

The spelling of 1298900420 in words is "one billion, two hundred ninety-eight million, nine hundred thousand, four hundred twenty".