732272021 has 16 divisors (see below), whose sum is σ = 796320000. Its totient is φ = 669359808.

The previous prime is 732271963. The next prime is 732272029. The reversal of 732272021 is 120272237.

It is not a de Polignac number, because 732272021 - 2¹⁸ = 732009877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732272029) 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, 1018100 + ... + 1018818.

It is an arithmetic number, because the mean of its divisors is an integer number (49770000).

Almost surely, 2^732272021 is an apocalyptic number.

It is an amenable number.

732272021 is a deficient number, since it is larger than the sum of its proper divisors (64047979).

732272021 is a wasteful number, since it uses less digits than its factorization.

732272021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 732272021 is about 27060.5251427240. The cubic root of 732272021 is about 901.3445011623.

The spelling of 732272021 in words is "seven hundred thirty-two million, two hundred seventy-two thousand, twenty-one".