49213021 has 32 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 38335680.

The previous prime is 49213013. The next prime is 49213033. The reversal of 49213021 is 12031294.

It is a cyclic number.

It is not a de Polignac number, because 49213021 - 2³ = 49213013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49212983 and 49213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49213081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160150 + ... + 160456.

It is an arithmetic number, because the mean of its divisors is an integer number (1940400).

Almost surely, 2^49213021 is an apocalyptic number.

It is an amenable number.

49213021 is a deficient number, since it is larger than the sum of its proper divisors (12879779).

49213021 is a wasteful number, since it uses less digits than its factorization.

49213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 49213021 is about 7015.1992844110. The cubic root of 49213021 is about 366.4600826200.

The spelling of 49213021 in words is "forty-nine million, two hundred thirteen thousand, twenty-one".