49997430 has 96 divisors (see below), whose sum is σ = 151115328. Its totient is φ = 11232000.

The previous prime is 49997411. The next prime is 49997447. The reversal of 49997430 is 3479994.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37780 + ... + 39080.

It is an arithmetic number, because the mean of its divisors is an integer number (1574118).

Almost surely, 2^49997430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49997430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75557664).

49997430 is an abundant number, since it is smaller than the sum of its proper divisors (101117898).

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

49997430 is a wasteful number, since it uses less digits than its factorization.

49997430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 49997430 is about 7070.8860830875. The cubic root of 49997430 is about 368.3968377819.

The spelling of 49997430 in words is "forty-nine million, nine hundred ninety-seven thousand, four hundred thirty".