49397040 has 420 divisors, whose sum is σ = 216309072. Its totient is φ = 10264320.

The previous prime is 49397039. The next prime is 49397059. The reversal of 49397040 is 4079394.

It is a tau number, because it is divible by the number of its divisors (420).

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 = 49396986 and 49397004.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 4490635 + ... + 4490645.

Almost surely, 2^49397040 is an apocalyptic number.

49397040 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 49397040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108154536).

49397040 is an abundant number, since it is smaller than the sum of its proper divisors (166912032).

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

49397040 is a wasteful number, since it uses less digits than its factorization.

49397040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 49397040 is about 7028.3027823223. The cubic root of 49397040 is about 366.9162744857.

The spelling of 49397040 in words is "forty-nine million, three hundred ninety-seven thousand, forty".