49272321 has 16 divisors (see below), whose sum is σ = 75476864. Its totient is φ = 28007424.

The previous prime is 49272287. The next prime is 49272337. The reversal of 49272321 is 12327294.

It is not a de Polignac number, because 49272321 - 2¹⁰ = 49271297 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49272721) 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, 2026 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (4717304).

Almost surely, 2^49272321 is an apocalyptic number.

49272321 is the 4053-rd octagonal number.

It is an amenable number.

49272321 is a deficient number, since it is larger than the sum of its proper divisors (26204543).

49272321 is a wasteful number, since it uses less digits than its factorization.

49272321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360.

The product of its digits is 6048, while the sum is 30.

The square root of 49272321 is about 7019.4245490638. The cubic root of 49272321 is about 366.6072141440.

The spelling of 49272321 in words is "forty-nine million, two hundred seventy-two thousand, three hundred twenty-one".