49999380 has 48 divisors (see below), whose sum is σ = 148236480. Its totient is φ = 12548608.

The previous prime is 49999361. The next prime is 49999387. The reversal of 49999380 is 8399994.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23490 + ... + 25529.

It is an arithmetic number, because the mean of its divisors is an integer number (3088260).

Almost surely, 2^49999380 is an apocalyptic number.

It is an amenable number.

49999380 is an abundant number, since it is smaller than the sum of its proper divisors (98237100).

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

49999380 is a wasteful number, since it uses less digits than its factorization.

49999380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49048 (or 49046 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 49999380 is about 7071.0239711091. The cubic root of 49999380 is about 368.4016271247.

The spelling of 49999380 in words is "forty-nine million, nine hundred ninety-nine thousand, three hundred eighty".