49212540 has 72 divisors (see below), whose sum is σ = 160768608. Its totient is φ = 12113280.

The previous prime is 49212529. The next prime is 49212557. The reversal of 49212540 is 4521294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8176 + ... + 12855.

Almost surely, 2^49212540 is an apocalyptic number.

It is an amenable number.

49212540 is an abundant number, since it is smaller than the sum of its proper divisors (111556068).

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

49212540 is a wasteful number, since it uses less digits than its factorization.

49212540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21059 (or 21054 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 49212540 is about 7015.1650016233. The cubic root of 49212540 is about 366.4588887092.

The spelling of 49212540 in words is "forty-nine million, two hundred twelve thousand, five hundred forty".