403350240 has 192 divisors, whose sum is σ = 1367331840. Its totient is φ = 99624960.

The previous prime is 403350217. The next prime is 403350247. The reversal of 403350240 is 42053304.

It is a happy number.

It is a super-2 number, since 2×403350240² = 325382832216115200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403350247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428170 + ... + 429110.

It is an arithmetic number, because the mean of its divisors is an integer number (7121520).

Almost surely, 2^403350240 is an apocalyptic number.

403350240 is a gapful number since it is divisible by the number (40) 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 403350240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683665920).

403350240 is an abundant number, since it is smaller than the sum of its proper divisors (963981600).

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

403350240 is a wasteful number, since it uses less digits than its factorization.

403350240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 403350240 is about 20083.5813539319. The cubic root of 403350240 is about 738.8576481998.

The spelling of 403350240 in words is "four hundred three million, three hundred fifty thousand, two hundred forty".