299355420 has 192 divisors, whose sum is σ = 1043159040. Its totient is φ = 62456832.

The previous prime is 299355403. The next prime is 299355457. The reversal of 299355420 is 24553992.

It is a super-2 number, since 2×299355420² = 179227334966752800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 594889 + ... + 595391.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^299355420 is an apocalyptic number.

299355420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299355420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521579520).

299355420 is an abundant number, since it is smaller than the sum of its proper divisors (743803620).

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

299355420 is a wasteful number, since it uses less digits than its factorization.

299355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 299355420 is about 17301.8906481344. The cubic root of 299355420 is about 668.9531584123.

The spelling of 299355420 in words is "two hundred ninety-nine million, three hundred fifty-five thousand, four hundred twenty".