42355494 has 32 divisors (see below), whose sum is σ = 94479840. Its totient is φ = 14065056.

The previous prime is 42355493. The next prime is 42355513. The reversal of 42355494 is 49455324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42355493) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14484 + ... + 17160.

It is an arithmetic number, because the mean of its divisors is an integer number (2952495).

Almost surely, 2^42355494 is an apocalyptic number.

42355494 is an abundant number, since it is smaller than the sum of its proper divisors (52124346).

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

42355494 is a wasteful number, since it uses less digits than its factorization.

42355494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981 (or 2975 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 42355494 is about 6508.1098638545. The cubic root of 42355494 is about 348.5806299800.

It can be divided in two parts, 42355 and 494, that added together give a square (42849 = 207²).

The spelling of 42355494 in words is "forty-two million, three hundred fifty-five thousand, four hundred ninety-four".