299428560 has 60 divisors (see below), whose sum is σ = 1005583332. Its totient is φ = 79847424.

The previous prime is 299428537. The next prime is 299428583. The reversal of 299428560 is 65824992.

It is an interprime number because it is at equal distance from previous prime (299428537) and next prime (299428583).

It can be written as a sum of positive squares in 2 ways, for example, as 107993664 + 191434896 = 10392^2 + 13836^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207217 + ... + 208656.

Almost surely, 2^299428560 is an apocalyptic number.

299428560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299428560 is an abundant number, since it is smaller than the sum of its proper divisors (706154772).

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

299428560 is a wasteful number, since it uses less digits than its factorization.

299428560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415892 (or 415883 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 299428560 is about 17304.0041608872. The cubic root of 299428560 is about 669.0076346264.

The spelling of 299428560 in words is "two hundred ninety-nine million, four hundred twenty-eight thousand, five hundred sixty".