42921246 has 16 divisors (see below), whose sum is σ = 87669504. Its totient is φ = 14002584.

The previous prime is 42921227. The next prime is 42921269. The reversal of 42921246 is 64212924.

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, 75820 + ... + 76383.

It is an arithmetic number, because the mean of its divisors is an integer number (5479344).

Almost surely, 2^42921246 is an apocalyptic number.

42921246 is an abundant number, since it is smaller than the sum of its proper divisors (44748258).

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

42921246 is a wasteful number, since it uses less digits than its factorization.

42921246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152255.

The product of its digits is 6912, while the sum is 30.

The square root of 42921246 is about 6551.4308360846. The cubic root of 42921246 is about 350.1257942384.

The spelling of 42921246 in words is "forty-two million, nine hundred twenty-one thousand, two hundred forty-six".