405024342 has 32 divisors (see below), whose sum is σ = 853666560. Its totient is φ = 127855200.

The previous prime is 405024307. The next prime is 405024377. The reversal of 405024342 is 243420504.

It is an interprime number because it is at equal distance from previous prime (405024307) and next prime (405024377).

It is a super-2 number, since 2×405024342² = 328089435225065928, which contains 22 as substring.

It is a congruent 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, 592 + ... + 28467.

It is an arithmetic number, because the mean of its divisors is an integer number (26677080).

Almost surely, 2^405024342 is an apocalyptic number.

405024342 is an abundant number, since it is smaller than the sum of its proper divisors (448642218).

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

405024342 is a wasteful number, since it uses less digits than its factorization.

405024342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29188.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 405024342 is about 20125.2165702633. The cubic root of 405024342 is about 739.8784448502.

Adding to 405024342 its reverse (243420504), we get a palindrome (648444846).

It can be divided in two parts, 40502 and 4342, that added together give a palindrome (44844).

The spelling of 405024342 in words is "four hundred five million, twenty-four thousand, three hundred forty-two".