49105380 has 48 divisors (see below), whose sum is σ = 138366144. Its totient is φ = 13011840.

The previous prime is 49105379. The next prime is 49105409. The reversal of 49105380 is 8350194.

It is a super-2 number, since 2×49105380² = 4822676689888800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) 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 (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7270 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (2882628).

Almost surely, 2^49105380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49105380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69183072).

49105380 is an abundant number, since it is smaller than the sum of its proper divisors (89260764).

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

49105380 is a wasteful number, since it uses less digits than its factorization.

49105380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 5194 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 49105380 is about 7007.5231002117. The cubic root of 49105380 is about 366.1927080959.

The spelling of 49105380 in words is "forty-nine million, one hundred five thousand, three hundred eighty".