42996420 has 96 divisors (see below), whose sum is σ = 135555840. Its totient is φ = 11454048.

The previous prime is 42996419. The next prime is 42996463. The reversal of 42996420 is 2469924.

42996420 is a `hidden beast` number, since 4 + 2 + 9 + 9 + 642 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43249 + ... + 44231.

It is an arithmetic number, because the mean of its divisors is an integer number (1412040).

Almost surely, 2^42996420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42996420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67777920).

42996420 is an abundant number, since it is smaller than the sum of its proper divisors (92559420).

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

42996420 is an equidigital number, since it uses as much as digits as its factorization.

42996420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 42996420 is about 6557.1655461792. The cubic root of 42996420 is about 350.3300831603.

The spelling of 42996420 in words is "forty-two million, nine hundred ninety-six thousand, four hundred twenty".