49516840 has 32 divisors (see below), whose sum is σ = 113519880. Its totient is φ = 19432192.

The previous prime is 49516837. The next prime is 49516843. The reversal of 49516840 is 4861594.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49516837) and next prime (49516843).

It can be written as a sum of positive squares in 4 ways, for example, as 47914084 + 1602756 = 6922^2 + 1266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49516840.

It is not an unprimeable number, because it can be changed into a prime (49516843) 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, 9559 + ... + 13798.

Almost surely, 2^49516840 is an apocalyptic number.

49516840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49516840 is an abundant number, since it is smaller than the sum of its proper divisors (64003040).

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

49516840 is a wasteful number, since it uses less digits than its factorization.

49516840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23421 (or 23417 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 49516840 is about 7036.8203046547. The cubic root of 49516840 is about 367.2126558229.

The spelling of 49516840 in words is "forty-nine million, five hundred sixteen thousand, eight hundred forty".