42429951 has 6 divisors (see below), whose sum is σ = 61287720. Its totient is φ = 28286628.

The previous prime is 42429941. The next prime is 42429973. The reversal of 42429951 is 15992424.

It is not a de Polignac number, because 42429951 - 2⁷ = 42429823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42429931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2357211 + ... + 2357228.

It is an arithmetic number, because the mean of its divisors is an integer number (10214620).

Almost surely, 2^42429951 is an apocalyptic number.

42429951 is a deficient number, since it is larger than the sum of its proper divisors (18857769).

42429951 is a wasteful number, since it uses less digits than its factorization.

42429951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714445 (or 4714442 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 42429951 is about 6513.8276765662. The cubic root of 42429951 is about 348.7847677983.

The spelling of 42429951 in words is "forty-two million, four hundred twenty-nine thousand, nine hundred fifty-one".