42436136 has 8 divisors (see below), whose sum is σ = 79567770. Its totient is φ = 21218064.

The previous prime is 42436129. The next prime is 42436171. The reversal of 42436136 is 63163424.

It can be written as a sum of positive squares in only one way, i.e., 37283236 + 5152900 = 6106^2 + 2270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42436136² = 3601651277220992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42436099 and 42436108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2652251 + ... + 2652266.

Almost surely, 2^42436136 is an apocalyptic number.

It is an amenable number.

42436136 is a deficient number, since it is larger than the sum of its proper divisors (37131634).

42436136 is a wasteful number, since it uses less digits than its factorization.

42436136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304523 (or 5304519 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 42436136 is about 6514.3024185249. The cubic root of 42436136 is about 348.8017143885.

The spelling of 42436136 in words is "forty-two million, four hundred thirty-six thousand, one hundred thirty-six".