42400202 has 8 divisors (see below), whose sum is σ = 68492676. Its totient is φ = 19569312.

The previous prime is 42400181. The next prime is 42400207. The reversal of 42400202 is 20200424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41357761 + 1042441 = 6431^2 + 1021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42400207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815363 + ... + 815414.

Almost surely, 2^42400202 is an apocalyptic number.

42400202 is a deficient number, since it is larger than the sum of its proper divisors (26092474).

42400202 is a wasteful number, since it uses less digits than its factorization.

42400202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630792.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42400202 is about 6511.5437493731. The cubic root of 42400202 is about 348.7032340095.

Adding to 42400202 its reverse (20200424), we get a palindrome (62600626).

The spelling of 42400202 in words is "forty-two million, four hundred thousand, two hundred two".