49173888 has 64 divisors (see below), whose sum is σ = 134187120. Its totient is φ = 15943680.

The previous prime is 49173853. The next prime is 49173889. The reversal of 49173888 is 88837194.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×49173888² = 4836142522073088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49173889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12478 + ... + 15938.

Almost surely, 2^49173888 is an apocalyptic number.

49173888 is a gapful number since it is divisible by the number (48) 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 49173888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67093560).

49173888 is an abundant number, since it is smaller than the sum of its proper divisors (85013232).

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

49173888 is a wasteful number, since it uses less digits than its factorization.

49173888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515 (or 3503 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 49173888 is about 7012.4095716095. The cubic root of 49173888 is about 366.3629234745.

The spelling of 49173888 in words is "forty-nine million, one hundred seventy-three thousand, eight hundred eighty-eight".