1299020 has 12 divisors (see below), whose sum is σ = 2727984. Its totient is φ = 519600.

The previous prime is 1299019. The next prime is 1299029. The reversal of 1299020 is 209921.

It is not an unprimeable number, because it can be changed into a prime (1299029) 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, 32456 + ... + 32495.

It is an arithmetic number, because the mean of its divisors is an integer number (227332).

2^1299020 is an apocalyptic number.

1299020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1299020 is an abundant number, since it is smaller than the sum of its proper divisors (1428964).

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

1299020 is a wasteful number, since it uses less digits than its factorization.

1299020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64960 (or 64958 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1299020 is about 1139.7455856462. The cubic root of 1299020 is about 109.1118566676. Note that the first 3 decimals are identical.

The spelling of 1299020 in words is "one million, two hundred ninety-nine thousand, twenty".