46220729 has 4 divisors (see below), whose sum is σ = 46629876. Its totient is φ = 45811584.

The previous prime is 46220723. The next prime is 46220771. The reversal of 46220729 is 92702264.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4644025 + 41576704 = 2155^2 + 6448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46220729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46220695 and 46220704.

It is not an unprimeable number, because it can be changed into a prime (46220723) 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, 204404 + ... + 204629.

It is an arithmetic number, because the mean of its divisors is an integer number (11657469).

Almost surely, 2^46220729 is an apocalyptic number.

It is an amenable number.

46220729 is a deficient number, since it is larger than the sum of its proper divisors (409147).

46220729 is a wasteful number, since it uses less digits than its factorization.

46220729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409146.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 46220729 is about 6798.5828670393. The cubic root of 46220729 is about 358.8769761812.

The spelling of 46220729 in words is "forty-six million, two hundred twenty thousand, seven hundred twenty-nine".