42250402 has 16 divisors (see below), whose sum is σ = 66487680. Its totient is φ = 20097792.

The previous prime is 42250399. The next prime is 42250409. The reversal of 42250402 is 20405224.

It is a self number, because there is not a number n which added to its sum of digits gives 42250402.

It is not an unprimeable number, because it can be changed into a prime (42250409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6499 + ... + 11257.

It is an arithmetic number, because the mean of its divisors is an integer number (4155480).

Almost surely, 2^42250402 is an apocalyptic number.

42250402 is a deficient number, since it is larger than the sum of its proper divisors (24237278).

42250402 is a wasteful number, since it uses less digits than its factorization.

42250402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977.

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

The square root of 42250402 is about 6500.0309230034. The cubic root of 42250402 is about 348.2920930295.

Adding to 42250402 its reverse (20405224), we get a palindrome (62655626).

The spelling of 42250402 in words is "forty-two million, two hundred fifty thousand, four hundred two".