40448142 has 24 divisors (see below), whose sum is σ = 100157616. Its totient is φ = 11556576.

The previous prime is 40448137. The next prime is 40448173. The reversal of 40448142 is 24184404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160383 + ... + 160634.

It is an arithmetic number, because the mean of its divisors is an integer number (4173234).

Almost surely, 2^40448142 is an apocalyptic number.

40448142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40448142 is an abundant number, since it is smaller than the sum of its proper divisors (59709474).

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

40448142 is a wasteful number, since it uses less digits than its factorization.

40448142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321032 (or 321029 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 40448142 is about 6359.8853763256. The cubic root of 40448142 is about 343.2676358621.

The spelling of 40448142 in words is "forty million, four hundred forty-eight thousand, one hundred forty-two".