403041240 has 96 divisors (see below), whose sum is σ = 1497019680. Its totient is φ = 92123136.

The previous prime is 403041239. The next prime is 403041251. The reversal of 403041240 is 42140304.

It is a super-2 number, since 2×403041240² = 324884482281475200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77449 + ... + 82488.

It is an arithmetic number, because the mean of its divisors is an integer number (15593955).

Almost surely, 2^403041240 is an apocalyptic number.

403041240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403041240 is an abundant number, since it is smaller than the sum of its proper divisors (1093978440).

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

403041240 is a wasteful number, since it uses less digits than its factorization.

403041240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159961 (or 159954 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 403041240 is about 20075.8870289708. The cubic root of 403041240 is about 738.6689244256.

Adding to 403041240 its reverse (42140304), we get a palindrome (445181544).

The spelling of 403041240 in words is "four hundred three million, forty-one thousand, two hundred forty".