49243920 has 160 divisors (see below), whose sum is σ = 173988864. Its totient is φ = 11404800.

The previous prime is 49243913. The next prime is 49243927. The reversal of 49243920 is 2934294.

It is an interprime number because it is at equal distance from previous prime (49243913) and next prime (49243927).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (49243927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60315 + ... + 61125.

Almost surely, 2^49243920 is an apocalyptic number.

49243920 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 49243920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86994432).

49243920 is an abundant number, since it is smaller than the sum of its proper divisors (124744944).

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

49243920 is a wasteful number, since it uses less digits than its factorization.

49243920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 49243920 is about 7017.4012283751. The cubic root of 49243920 is about 366.5367620630.

The spelling of 49243920 in words is "forty-nine million, two hundred forty-three thousand, nine hundred twenty".