42446356 has 12 divisors (see below), whose sum is σ = 75327840. Its totient is φ = 20924120.

The previous prime is 42446351. The next prime is 42446381. The reversal of 42446356 is 65364424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42446351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74446 + ... + 75013.

It is an arithmetic number, because the mean of its divisors is an integer number (6277320).

Almost surely, 2^42446356 is an apocalyptic number.

It is an amenable number.

42446356 is a deficient number, since it is larger than the sum of its proper divisors (32881484).

42446356 is a wasteful number, since it uses less digits than its factorization.

42446356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149534 (or 149532 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 42446356 is about 6515.0867991148. The cubic root of 42446356 is about 348.8297130686.

The spelling of 42446356 in words is "forty-two million, four hundred forty-six thousand, three hundred fifty-six".