42402238 has 16 divisors (see below), whose sum is σ = 65007360. Its totient is φ = 20736856.

The previous prime is 42402229. The next prime is 42402247. The reversal of 42402238 is 83220424.

It is an interprime number because it is at equal distance from previous prime (42402229) and next prime (42402247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25995 + ... + 27577.

It is an arithmetic number, because the mean of its divisors is an integer number (4062960).

Almost surely, 2^42402238 is an apocalyptic number.

42402238 is a deficient number, since it is larger than the sum of its proper divisors (22605122).

42402238 is a wasteful number, since it uses less digits than its factorization.

42402238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 42402238 is about 6511.7000852312. The cubic root of 42402238 is about 348.7088153385.

The spelling of 42402238 in words is "forty-two million, four hundred two thousand, two hundred thirty-eight".