49797720 has 192 divisors, whose sum is σ = 193298400. Its totient is φ = 11370240.

The previous prime is 49797697. The next prime is 49797721. The reversal of 49797720 is 2779794.

It is a happy number.

49797720 is a `hidden beast` number, since 497 + 97 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49797721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52450 + ... + 53390.

Almost surely, 2^49797720 is an apocalyptic number.

49797720 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 49797720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96649200).

49797720 is an abundant number, since it is smaller than the sum of its proper divisors (143500680).

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

49797720 is a wasteful number, since it uses less digits than its factorization.

49797720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 49797720 is about 7056.7499601445. The cubic root of 49797720 is about 367.9056744698.

The spelling of 49797720 in words is "forty-nine million, seven hundred ninety-seven thousand, seven hundred twenty".