42380402 has 12 divisors (see below), whose sum is σ = 64094730. Its totient is φ = 21016896.

The previous prime is 42380363. The next prime is 42380411. The reversal of 42380402 is 20408324.

It can be written as a sum of positive squares in 3 ways, for example, as 30813601 + 11566801 = 5551^2 + 3401^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36974 + ... + 38102.

Almost surely, 2^42380402 is an apocalyptic number.

42380402 is a deficient number, since it is larger than the sum of its proper divisors (21714328).

42380402 is a wasteful number, since it uses less digits than its factorization.

42380402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42380402 is about 6510.0231950432. The cubic root of 42380402 is about 348.6489465399.

Adding to 42380402 its reverse (20408324), we get a palindrome (62788726).

The spelling of 42380402 in words is "forty-two million, three hundred eighty thousand, four hundred two".