731620041 has 16 divisors (see below), whose sum is σ = 1077784704. Its totient is φ = 439096064.

The previous prime is 731619991. The next prime is 731620049. The reversal of 731620041 is 140026137.

It is a cyclic number.

It is not a de Polignac number, because 731620041 - 2⁷ = 731619913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731619993 and 731620020.

It is not an unprimeable number, because it can be changed into a prime (731620049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310686 + ... + 313031.

It is an arithmetic number, because the mean of its divisors is an integer number (67361544).

Almost surely, 2^731620041 is an apocalyptic number.

It is an amenable number.

731620041 is a deficient number, since it is larger than the sum of its proper divisors (346164663).

731620041 is a wasteful number, since it uses less digits than its factorization.

731620041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623760.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 731620041 is about 27048.4757611219. The cubic root of 731620041 is about 901.0769170474.

Adding to 731620041 its reverse (140026137), we get a palindrome (871646178).

The spelling of 731620041 in words is "seven hundred thirty-one million, six hundred twenty thousand, forty-one".