731045426 has 16 divisors (see below), whose sum is σ = 1128093696. Its totient is φ = 355128096.

The previous prime is 731045423. The next prime is 731045431. The reversal of 731045426 is 624540137.

It is a junction number, because it is equal to n+sod(n) for n = 731045392 and 731045401.

It is not an unprimeable number, because it can be changed into a prime (731045423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506 + ... + 41261.

It is an arithmetic number, because the mean of its divisors is an integer number (70505856).

Almost surely, 2^731045426 is an apocalyptic number.

731045426 is a deficient number, since it is larger than the sum of its proper divisors (397048270).

731045426 is a wasteful number, since it uses less digits than its factorization.

731045426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56953.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 731045426 is about 27037.8517267922. The cubic root of 731045426 is about 900.8409530698.

The spelling of 731045426 in words is "seven hundred thirty-one million, forty-five thousand, four hundred twenty-six".