403241940 has 144 divisors (see below), whose sum is σ = 1297470720. Its totient is φ = 101088000.

The previous prime is 403241939. The next prime is 403241941. The reversal of 403241940 is 49142304.

It is an interprime number because it is at equal distance from previous prime (403241939) and next prime (403241941).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403241941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536565 + ... + 537315.

Almost surely, 2^403241940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403241940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648735360).

403241940 is an abundant number, since it is smaller than the sum of its proper divisors (894228780).

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

403241940 is a wasteful number, since it uses less digits than its factorization.

403241940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 403241940 is about 20080.8849406594. The cubic root of 403241940 is about 738.7915142397.

The spelling of 403241940 in words is "four hundred three million, two hundred forty-one thousand, nine hundred forty".