38442430 has 72 divisors (see below), whose sum is σ = 80149608. Its totient is φ = 13261248.

The previous prime is 38442419. The next prime is 38442431. The reversal of 38442430 is 3424483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38442431) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 893989 + ... + 894031.

It is an arithmetic number, because the mean of its divisors is an integer number (1113189).

Almost surely, 2^38442430 is an apocalyptic number.

38442430 is an abundant number, since it is smaller than the sum of its proper divisors (41707178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38442430 is a wasteful number, since it uses less digits than its factorization.

38442430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 38442430 is about 6200.1959646450. The cubic root of 38442430 is about 337.4972802707.

The spelling of 38442430 in words is "thirty-eight million, four hundred forty-two thousand, four hundred thirty".