732270781 has 16 divisors (see below), whose sum is σ = 808128000. Its totient is φ = 658008000.

The previous prime is 732270731. The next prime is 732270787. The reversal of 732270781 is 187072237.

It is a cyclic number.

It is not a de Polignac number, because 732270781 - 2¹⁹ = 731746493 is a prime.

It is a super-2 number, since 2×732270781² = 1072440993412699922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 732270781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732270787) 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, 374356 + ... + 376306.

It is an arithmetic number, because the mean of its divisors is an integer number (50508000).

Almost surely, 2^732270781 is an apocalyptic number.

It is an amenable number.

732270781 is a deficient number, since it is larger than the sum of its proper divisors (75857219).

732270781 is a wasteful number, since it uses less digits than its factorization.

732270781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 732270781 is about 27060.5022311117. The cubic root of 732270781 is about 901.3439923952.

The spelling of 732270781 in words is "seven hundred thirty-two million, two hundred seventy thousand, seven hundred eighty-one".