42125412 has 24 divisors (see below), whose sum is σ = 112334656. Its totient is φ = 12035808.

The previous prime is 42125393. The next prime is 42125431. The reversal of 42125412 is 21452124.

It is an interprime number because it is at equal distance from previous prime (42125393) and next prime (42125431).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 250663 + ... + 250830.

Almost surely, 2^42125412 is an apocalyptic number.

42125412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42125412 is an abundant number, since it is smaller than the sum of its proper divisors (70209244).

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

42125412 is a wasteful number, since it uses less digits than its factorization.

42125412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501507 (or 501505 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 42125412 is about 6490.4092320901. The cubic root of 42125412 is about 347.9483012116.

Adding to 42125412 its reverse (21452124), we get a palindrome (63577536).

The spelling of 42125412 in words is "forty-two million, one hundred twenty-five thousand, four hundred twelve".