49977450 has 144 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 12188160.

The previous prime is 49977449. The next prime is 49977493. The reversal of 49977450 is 5477994.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49977396 and 49977405.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 359481 + ... + 359619.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^49977450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49977450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73120320).

49977450 is an abundant number, since it is smaller than the sum of its proper divisors (96263190).

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

49977450 is a wasteful number, since it uses less digits than its factorization.

49977450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 49977450 is about 7069.4731062506. The cubic root of 49977450 is about 368.3477582625.

The spelling of 49977450 in words is "forty-nine million, nine hundred seventy-seven thousand, four hundred fifty".