42812452 has 6 divisors (see below), whose sum is σ = 74921798. Its totient is φ = 21406224.

The previous prime is 42812447. The next prime is 42812501. The reversal of 42812452 is 25421824.

It can be written as a sum of positive squares in only one way, i.e., 42328036 + 484416 = 6506^2 + 696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42812452.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5351553 + ... + 5351560.

Almost surely, 2^42812452 is an apocalyptic number.

It is an amenable number.

42812452 is a deficient number, since it is larger than the sum of its proper divisors (32109346).

42812452 is a wasteful number, since it uses less digits than its factorization.

42812452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10703117 (or 10703115 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 42812452 is about 6543.1224961787. The cubic root of 42812452 is about 349.8297185289.

It can be divided in two parts, 42812 and 452, that added together give a square (43264 = 208²).

The spelling of 42812452 in words is "forty-two million, eight hundred twelve thousand, four hundred fifty-two".