297974040 has 192 divisors, whose sum is σ = 1106784000. Its totient is φ = 62839296.

The previous prime is 297974023. The next prime is 297974057. The reversal of 297974040 is 40479792.

It is an interprime number because it is at equal distance from previous prime (297974023) and next prime (297974057).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 297973983 and 297974001.

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, 140911 + ... + 143009.

It is an arithmetic number, because the mean of its divisors is an integer number (5764500).

Almost surely, 2^297974040 is an apocalyptic number.

297974040 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 297974040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553392000).

297974040 is an abundant number, since it is smaller than the sum of its proper divisors (808809960).

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

297974040 is a wasteful number, since it uses less digits than its factorization.

297974040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 297974040 is about 17261.9245740445. The cubic root of 297974040 is about 667.9226068799.

The spelling of 297974040 in words is "two hundred ninety-seven million, nine hundred seventy-four thousand, forty".