49236840 has 48 divisors (see below), whose sum is σ = 160020900. Its totient is φ = 13129728.

The previous prime is 49236791. The next prime is 49236877. The reversal of 49236840 is 4863294.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39614436 + 9622404 = 6294^2 + 3102^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49236795 and 49236804.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68025 + ... + 68744.

Almost surely, 2^49236840 is an apocalyptic number.

49236840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49236840 is an abundant number, since it is smaller than the sum of its proper divisors (110784060).

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

49236840 is a wasteful number, since it uses less digits than its factorization.

49236840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136786 (or 136779 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 49236840 is about 7016.8967499886. The cubic root of 49236840 is about 366.5191950574.

The spelling of 49236840 in words is "forty-nine million, two hundred thirty-six thousand, eight hundred forty".