403379240 has 32 divisors (see below), whose sum is σ = 990113760. Its totient is φ = 146683200.

The previous prime is 403379231. The next prime is 403379287. The reversal of 403379240 is 42973304.

It is a super-2 number, since 2×403379240² = 325429622525955200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 403379197 and 403379206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457946 + ... + 458825.

It is an arithmetic number, because the mean of its divisors is an integer number (30941055).

Almost surely, 2^403379240 is an apocalyptic number.

403379240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403379240 is an abundant number, since it is smaller than the sum of its proper divisors (586734520).

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

403379240 is a wasteful number, since it uses less digits than its factorization.

403379240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916793 (or 916789 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 403379240 is about 20084.3033237402. The cubic root of 403379240 is about 738.8753551917.

The spelling of 403379240 in words is "four hundred three million, three hundred seventy-nine thousand, two hundred forty".