42425370 has 192 divisors, whose sum is σ = 132088320. Its totient is φ = 9704448.

The previous prime is 42425359. The next prime is 42425371. The reversal of 42425370 is 7352424.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42425371) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 536991 + ... + 537069.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^42425370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42425370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66044160).

42425370 is an abundant number, since it is smaller than the sum of its proper divisors (89662950).

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

42425370 is a wasteful number, since it uses less digits than its factorization.

42425370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42425370 is about 6513.4760305078. The cubic root of 42425370 is about 348.7722150261.

Adding to 42425370 its reverse (7352424), we get a palindrome (49777794).

The spelling of 42425370 in words is "forty-two million, four hundred twenty-five thousand, three hundred seventy".