42252004 has 12 divisors (see below), whose sum is σ = 78290604. Its totient is φ = 19883264.

The previous prime is 42251999. The next prime is 42252019. The reversal of 42252004 is 40025224.

It can be written as a sum of positive squares in 2 ways, for example, as 18748900 + 23503104 = 4330^2 + 4848^2 .

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, 310609 + ... + 310744.

It is an arithmetic number, because the mean of its divisors is an integer number (6524217).

Almost surely, 2^42252004 is an apocalyptic number.

It is an amenable number.

42252004 is a deficient number, since it is larger than the sum of its proper divisors (36038600).

42252004 is a wasteful number, since it uses less digits than its factorization.

42252004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621374 (or 621372 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 42252004 is about 6500.1541520182. The cubic root of 42252004 is about 348.2964950143.

Adding to 42252004 its reverse (40025224), we get a palindrome (82277228).

The spelling of 42252004 in words is "forty-two million, two hundred fifty-two thousand, four".