403542120 has 64 divisors (see below), whose sum is σ = 1212448320. Its totient is φ = 107449344.

The previous prime is 403542101. The next prime is 403542149. The reversal of 403542120 is 21245304.

It is a super-2 number, since 2×403542120² = 325692485228188800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92304 + ... + 96576.

It is an arithmetic number, because the mean of its divisors is an integer number (18944505).

Almost surely, 2^403542120 is an apocalyptic number.

403542120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403542120 is an abundant number, since it is smaller than the sum of its proper divisors (808906200).

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

403542120 is a wasteful number, since it uses less digits than its factorization.

403542120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074 (or 5070 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 403542120 is about 20088.3578223806. The cubic root of 403542120 is about 738.9747916617.

Adding to 403542120 its reverse (21245304), we get a palindrome (424787424).

The spelling of 403542120 in words is "four hundred three million, five hundred forty-two thousand, one hundred twenty".