297239040 has 480 divisors, whose sum is σ = 1251169920. Its totient is φ = 63700992.

The previous prime is 297239029. The next prime is 297239071. The reversal of 297239040 is 40932792.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 297238986 and 297239004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3064272 + ... + 3064368.

It is an arithmetic number, because the mean of its divisors is an integer number (2606604).

Almost surely, 2^297239040 is an apocalyptic number.

297239040 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 297239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625584960).

297239040 is an abundant number, since it is smaller than the sum of its proper divisors (953930880).

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

297239040 is a wasteful number, since it uses less digits than its factorization.

297239040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 297239040 is about 17240.6217985315. The cubic root of 297239040 is about 667.3729758711.

The spelling of 297239040 in words is "two hundred ninety-seven million, two hundred thirty-nine thousand, forty".