42906736 has 20 divisors (see below), whose sum is σ = 83253352. Its totient is φ = 21422016.

The previous prime is 42906727. The next prime is 42906737. The reversal of 42906736 is 63760924.

It is a junction number, because it is equal to n+sod(n) for n = 42906695 and 42906704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42906737) 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, 12610 + ... + 15646.

Almost surely, 2^42906736 is an apocalyptic number.

It is an amenable number.

42906736 is a deficient number, since it is larger than the sum of its proper divisors (40346616).

42906736 is a wasteful number, since it uses less digits than its factorization.

42906736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 42906736 is about 6550.3233507973. The cubic root of 42906736 is about 350.0863351644.

It can be divided in two parts, 4290 and 6736, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 42906736 in words is "forty-two million, nine hundred six thousand, seven hundred thirty-six".