49213019 has 4 divisors (see below), whose sum is σ = 49229280. Its totient is φ = 49196760.

The previous prime is 49213013. The next prime is 49213033. The reversal of 49213019 is 91031294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49213019 - 2¹² = 49208923 is a prime.

It is a super-2 number, since 2×49213019² = 4843842478188722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49212982 and 49213000.

It is not an unprimeable number, because it can be changed into a prime (49213013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099 + ... + 10140.

It is an arithmetic number, because the mean of its divisors is an integer number (12307320).

Almost surely, 2^49213019 is an apocalyptic number.

49213019 is a deficient number, since it is larger than the sum of its proper divisors (16261).

49213019 is a wasteful number, since it uses less digits than its factorization.

49213019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16260.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 49213019 is about 7015.1991418633. The cubic root of 49213019 is about 366.4600776558.

The spelling of 49213019 in words is "forty-nine million, two hundred thirteen thousand, nineteen".