42951646 has 16 divisors (see below), whose sum is σ = 65836800. Its totient is φ = 21009688.

The previous prime is 42951617. The next prime is 42951653. The reversal of 42951646 is 64615924.

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, 27441 + ... + 28963.

It is an arithmetic number, because the mean of its divisors is an integer number (4114800).

Almost surely, 2^42951646 is an apocalyptic number.

42951646 is a deficient number, since it is larger than the sum of its proper divisors (22885154).

42951646 is a wasteful number, since it uses less digits than its factorization.

42951646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823.

The product of its digits is 51840, while the sum is 37.

The square root of 42951646 is about 6553.7505292771. The cubic root of 42951646 is about 350.2084363889.

The spelling of 42951646 in words is "forty-two million, nine hundred fifty-one thousand, six hundred forty-six".