49437138 has 16 divisors (see below), whose sum is σ = 100978560. Its totient is φ = 16128336.

The previous prime is 49437137. The next prime is 49437149. The reversal of 49437138 is 83173494.

It is a super-2 number, since 2×49437138² = 4888061227262088, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49437096 and 49437105.

It is not an unprimeable number, because it can be changed into a prime (49437137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87373 + ... + 87936.

It is an arithmetic number, because the mean of its divisors is an integer number (6311160).

Almost surely, 2^49437138 is an apocalyptic number.

49437138 is an abundant number, since it is smaller than the sum of its proper divisors (51541422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49437138 is a wasteful number, since it uses less digits than its factorization.

49437138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175361.

The product of its digits is 72576, while the sum is 39.

The square root of 49437138 is about 7031.1548126890. The cubic root of 49437138 is about 367.0155289457.

The spelling of 49437138 in words is "forty-nine million, four hundred thirty-seven thousand, one hundred thirty-eight".