42450536 has 8 divisors (see below), whose sum is σ = 79594770. Its totient is φ = 21225264.

The previous prime is 42450533. The next prime is 42450557. The reversal of 42450536 is 63505424.

It can be written as a sum of positive squares in only one way, i.e., 42328036 + 122500 = 6506^2 + 350^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42450499 and 42450508.

It is not an unprimeable number, because it can be changed into a prime (42450533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2653151 + ... + 2653166.

Almost surely, 2^42450536 is an apocalyptic number.

It is an amenable number.

42450536 is a deficient number, since it is larger than the sum of its proper divisors (37144234).

42450536 is a wasteful number, since it uses less digits than its factorization.

42450536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306323 (or 5306319 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 42450536 is about 6515.4075851016. The cubic root of 42450536 is about 348.8411632886.

The spelling of 42450536 in words is "forty-two million, four hundred fifty thousand, five hundred thirty-six".