298069920 has 72 divisors (see below), whose sum is σ = 1017168516. Its totient is φ = 79484928.

The previous prime is 298069883. The next prime is 298069921. The reversal of 298069920 is 29960892.

It can be written as a sum of positive squares in 2 ways, for example, as 294053904 + 4016016 = 17148^2 + 2004^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (298069921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102057 + ... + 104936.

Almost surely, 2^298069920 is an apocalyptic number.

298069920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298069920 is an abundant number, since it is smaller than the sum of its proper divisors (719098596).

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

298069920 is a wasteful number, since it uses less digits than its factorization.

298069920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207014 (or 207003 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 298069920 is about 17264.7015612781. The cubic root of 298069920 is about 667.9942390171.

It can be divided in two parts, 2980 and 69920, that added together give a square (72900 = 270²).

The spelling of 298069920 in words is "two hundred ninety-eight million, sixty-nine thousand, nine hundred twenty".