42120302 has 24 divisors (see below), whose sum is σ = 77367240. Its totient is φ = 17100720.

The previous prime is 42120301. The next prime is 42120367. The reversal of 42120302 is 20302124.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9449 + ... + 13172.

It is an arithmetic number, because the mean of its divisors is an integer number (3223635).

Almost surely, 2^42120302 is an apocalyptic number.

42120302 is a deficient number, since it is larger than the sum of its proper divisors (35246938).

42120302 is a wasteful number, since it uses less digits than its factorization.

42120302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22656 (or 22649 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42120302 is about 6490.0155623850. The cubic root of 42120302 is about 347.9342314167.

Adding to 42120302 its reverse (20302124), we get a palindrome (62422426).

The spelling of 42120302 in words is "forty-two million, one hundred twenty thousand, three hundred two".