42406364 has 144 divisors (see below), whose sum is σ = 108591840. Its totient is φ = 14192640.

The previous prime is 42406339. The next prime is 42406373. The reversal of 42406364 is 46360424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 476432 + ... + 476520.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^42406364 is an apocalyptic number.

42406364 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42406364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54295920).

42406364 is an abundant number, since it is smaller than the sum of its proper divisors (66185476).

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

42406364 is a wasteful number, since it uses less digits than its factorization.

42406364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 42406364 is about 6512.0168918700. The cubic root of 42406364 is about 348.7201254798.

Adding to 42406364 its reverse (46360424), we get a palindrome (88766788).

The spelling of 42406364 in words is "forty-two million, four hundred six thousand, three hundred sixty-four".