49670145 has 32 divisors (see below), whose sum is σ = 100919040. Its totient is φ = 22705920.

The previous prime is 49670143. The next prime is 49670171. The reversal of 49670145 is 54107694.

It is not a de Polignac number, because 49670145 - 2¹ = 49670143 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (49670143) 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, 25336 + ... + 27225.

It is an arithmetic number, because the mean of its divisors is an integer number (3153720).

Almost surely, 2^49670145 is an apocalyptic number.

49670145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49670145 is an abundant number, since it is smaller than the sum of its proper divisors (51248895).

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

49670145 is a wasteful number, since it uses less digits than its factorization.

49670145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52582 (or 52576 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 49670145 is about 7047.7049455833. The cubic root of 49670145 is about 367.5912309946.

The spelling of 49670145 in words is "forty-nine million, six hundred seventy thousand, one hundred forty-five".