405342124 has 48 divisors (see below), whose sum is σ = 826156800. Its totient is φ = 172065600.

The previous prime is 405342109. The next prime is 405342149. The reversal of 405342124 is 421243504.

It is a happy number.

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, 55942 + ... + 62770.

It is an arithmetic number, because the mean of its divisors is an integer number (17211600).

Almost surely, 2^405342124 is an apocalyptic number.

405342124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

405342124 is an abundant number, since it is smaller than the sum of its proper divisors (420814676).

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

405342124 is a wasteful number, since it uses less digits than its factorization.

405342124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6934 (or 6932 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 405342124 is about 20133.1101422507. The cubic root of 405342124 is about 740.0718970806.

Adding to 405342124 its reverse (421243504), we get a palindrome (826585628).

The spelling of 405342124 in words is "four hundred five million, three hundred forty-two thousand, one hundred twenty-four".