42023512 has 8 divisors (see below), whose sum is σ = 78794100. Its totient is φ = 21011752.

The previous prime is 42023491. The next prime is 42023521. The reversal of 42023512 is 21532024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42023512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626462 + ... + 2626477.

Almost surely, 2^42023512 is an apocalyptic number.

It is an amenable number.

42023512 is a deficient number, since it is larger than the sum of its proper divisors (36770588).

42023512 is a wasteful number, since it uses less digits than its factorization.

42023512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252945 (or 5252941 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42023512 is about 6482.5544347888. The cubic root of 42023512 is about 347.6675161493.

Adding to 42023512 its reverse (21532024), we get a palindrome (63555536).

It can be divided in two parts, 420 and 23512, that added together give a palindrome (23932).

The spelling of 42023512 in words is "forty-two million, twenty-three thousand, five hundred twelve".