42938402 has 8 divisors (see below), whose sum is σ = 69362076. Its totient is φ = 19817712.

The previous prime is 42938393. The next prime is 42938411. The reversal of 42938402 is 20483924.

It is an interprime number because it is at equal distance from previous prime (42938393) and next prime (42938411).

It can be written as a sum of positive squares in 2 ways, for example, as 42915601 + 22801 = 6551^2 + 151^2 .

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

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, 825713 + ... + 825764.

Almost surely, 2^42938402 is an apocalyptic number.

42938402 is a deficient number, since it is larger than the sum of its proper divisors (26423674).

42938402 is a wasteful number, since it uses less digits than its factorization.

42938402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651492.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 42938402 is about 6552.7400375721. The cubic root of 42938402 is about 350.1724374788.

The spelling of 42938402 in words is "forty-two million, nine hundred thirty-eight thousand, four hundred two".