49212240 has 160 divisors (see below), whose sum is σ = 190273536. Its totient is φ = 10222080.

The previous prime is 49212209. The next prime is 49212269. The reversal of 49212240 is 4221294.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 49212240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17149 + ... + 19811.

Almost surely, 2^49212240 is an apocalyptic number.

49212240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49212240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95136768).

49212240 is an abundant number, since it is smaller than the sum of its proper divisors (141061296).

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

49212240 is a wasteful number, since it uses less digits than its factorization.

49212240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2691 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 49212240 is about 7015.1436193424. The cubic root of 49212240 is about 366.4581440624.

The spelling of 49212240 in words is "forty-nine million, two hundred twelve thousand, two hundred forty".