49042240 has 56 divisors (see below), whose sum is σ = 125775720. Its totient is φ = 18106368.

The previous prime is 49042237. The next prime is 49042243. The reversal of 49042240 is 4224094.

It is an interprime number because it is at equal distance from previous prime (49042237) and next prime (49042243).

It can be written as a sum of positive squares in 4 ways, for example, as 1597696 + 47444544 = 1264^2 + 6888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49042243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735 + ... + 10054.

It is an arithmetic number, because the mean of its divisors is an integer number (2245995).

Almost surely, 2^49042240 is an apocalyptic number.

49042240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49042240 is an abundant number, since it is smaller than the sum of its proper divisors (76733480).

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

49042240 is a wasteful number, since it uses less digits than its factorization.

49042240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819 (or 11809 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 49042240 is about 7003.0164929122. The cubic root of 49042240 is about 366.0356898319.

The spelling of 49042240 in words is "forty-nine million, forty-two thousand, two hundred forty".