40263342 has 32 divisors (see below), whose sum is σ = 92988672. Its totient is φ = 11384064.

The previous prime is 40263331. The next prime is 40263359. The reversal of 40263342 is 24336204.

It is a happy number.

It is a super-2 number, since 2×40263342² = 3242273418017928, 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, 868 + ... + 9015.

It is an arithmetic number, because the mean of its divisors is an integer number (2905896).

Almost surely, 2^40263342 is an apocalyptic number.

40263342 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40263342 is an abundant number, since it is smaller than the sum of its proper divisors (52725330).

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

40263342 is a wasteful number, since it uses less digits than its factorization.

40263342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 40263342 is about 6345.3401800061. The cubic root of 40263342 is about 342.7440624602.

Adding to 40263342 its reverse (24336204), we get a palindrome (64599546).

The spelling of 40263342 in words is "forty million, two hundred sixty-three thousand, three hundred forty-two".