49157340 has 24 divisors (see below), whose sum is σ = 137640720. Its totient is φ = 13108608.

The previous prime is 49157327. The next prime is 49157419. The reversal of 49157340 is 4375194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409585 + ... + 409704.

It is an arithmetic number, because the mean of its divisors is an integer number (5735030).

Almost surely, 2^49157340 is an apocalyptic number.

It is an amenable number.

49157340 is an abundant number, since it is smaller than the sum of its proper divisors (88483380).

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

49157340 is a wasteful number, since it uses less digits than its factorization.

49157340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819301 (or 819299 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 49157340 is about 7011.2295640636. The cubic root of 49157340 is about 366.3218227054.

The spelling of 49157340 in words is "forty-nine million, one hundred fifty-seven thousand, three hundred forty".