40142324 has 12 divisors (see below), whose sum is σ = 71744064. Its totient is φ = 19644024.

The previous prime is 40142281. The next prime is 40142339. The reversal of 40142324 is 42324104.

It is a super-2 number, since 2×40142324² = 3222812352241952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40142296 and 40142305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106574 + ... + 106949.

It is an arithmetic number, because the mean of its divisors is an integer number (5978672).

Almost surely, 2^40142324 is an apocalyptic number.

It is an amenable number.

40142324 is a deficient number, since it is larger than the sum of its proper divisors (31601740).

40142324 is a wasteful number, since it uses less digits than its factorization.

40142324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213574 (or 213572 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40142324 is about 6335.7970295773. The cubic root of 40142324 is about 342.4003269023.

Adding to 40142324 its reverse (42324104), we get a palindrome (82466428).

The spelling of 40142324 in words is "forty million, one hundred forty-two thousand, three hundred twenty-four".