49999406 has 4 divisors (see below), whose sum is σ = 74999112. Its totient is φ = 24999702.

The previous prime is 49999403. The next prime is 49999409. The reversal of 49999406 is 60499994.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49999403) and next prime (49999409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999403) by changing a digit.

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 as a sum of consecutive naturals, namely, 12499850 + ... + 12499853.

It is an arithmetic number, because the mean of its divisors is an integer number (18749778).

Almost surely, 2^49999406 is an apocalyptic number.

49999406 is a deficient number, since it is larger than the sum of its proper divisors (24999706).

49999406 is a wasteful number, since it uses less digits than its factorization.

49999406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24999705.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 49999406 is about 7071.0258095979. The cubic root of 49999406 is about 368.4016909818.

It can be divided in two parts, 49999 and 406, that added together give a palindrome (50405).

The spelling of 49999406 in words is "forty-nine million, nine hundred ninety-nine thousand, four hundred six".