42919732 has 6 divisors (see below), whose sum is σ = 75109538. Its totient is φ = 21459864.

The previous prime is 42919729. The next prime is 42919753. The reversal of 42919732 is 23791924.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 226576 = 6534^2 + 476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42919691 and 42919700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5364963 + ... + 5364970.

Almost surely, 2^42919732 is an apocalyptic number.

It is an amenable number.

42919732 is a deficient number, since it is larger than the sum of its proper divisors (32189806).

42919732 is a wasteful number, since it uses less digits than its factorization.

42919732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10729937 (or 10729935 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 42919732 is about 6551.3152877876. The cubic root of 42919732 is about 350.1216774219.

It can be divided in two parts, 4 and 2919732, that added together give a triangular number (2919736 = T₂₄₁₆).

The spelling of 42919732 in words is "forty-two million, nine hundred nineteen thousand, seven hundred thirty-two".