42633838 has 8 divisors (see below), whose sum is σ = 68870088. Its totient is φ = 19677144.

The previous prime is 42633827. The next prime is 42633847. The reversal of 42633838 is 83833624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42633838² = 3635288285220488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42633797 and 42633806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819856 + ... + 819907.

It is an arithmetic number, because the mean of its divisors is an integer number (8608761).

Almost surely, 2^42633838 is an apocalyptic number.

42633838 is a deficient number, since it is larger than the sum of its proper divisors (26236250).

42633838 is a wasteful number, since it uses less digits than its factorization.

42633838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639778.

The product of its digits is 82944, while the sum is 37.

The square root of 42633838 is about 6529.4592425407. The cubic root of 42633838 is about 349.3425426435.

The spelling of 42633838 in words is "forty-two million, six hundred thirty-three thousand, eight hundred thirty-eight".