42245951 has 4 divisors (see below), whose sum is σ = 46086504. Its totient is φ = 38405400.

The previous prime is 42245941. The next prime is 42245989. The reversal of 42245951 is 15954224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42245951 - 2⁶ = 42245887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42245941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1920260 + ... + 1920281.

It is an arithmetic number, because the mean of its divisors is an integer number (11521626).

Almost surely, 2^42245951 is an apocalyptic number.

42245951 is a deficient number, since it is larger than the sum of its proper divisors (3840553).

42245951 is a wasteful number, since it uses less digits than its factorization.

42245951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840552.

The product of its digits is 14400, while the sum is 32.

The square root of 42245951 is about 6499.6885309990. The cubic root of 42245951 is about 348.2798619621.

The spelling of 42245951 in words is "forty-two million, two hundred forty-five thousand, nine hundred fifty-one".