42373440 has 84 divisors (see below), whose sum is σ = 145756884. Its totient is φ = 11298816.

The previous prime is 42373433. The next prime is 42373481. The reversal of 42373440 is 4437324.

It can be written as a sum of positive squares in 2 ways, for example, as 23503104 + 18870336 = 4848^2 + 4344^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4477 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (1735201).

Almost surely, 2^42373440 is an apocalyptic number.

42373440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42373440 is an abundant number, since it is smaller than the sum of its proper divisors (103383444).

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

42373440 is a wasteful number, since it uses less digits than its factorization.

42373440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736 (or 14723 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 42373440 is about 6509.4884591648. The cubic root of 42373440 is about 348.6298541703.

The spelling of 42373440 in words is "forty-two million, three hundred seventy-three thousand, four hundred forty".