49670638 has 8 divisors (see below), whose sum is σ = 74570832. Its totient is φ = 24813696.

The previous prime is 49670627. The next prime is 49670657. The reversal of 49670638 is 83607694.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 49670594 and 49670603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7770 + ... + 12637.

It is an arithmetic number, because the mean of its divisors is an integer number (9321354).

Almost surely, 2^49670638 is an apocalyptic number.

49670638 is a deficient number, since it is larger than the sum of its proper divisors (24900194).

49670638 is a wasteful number, since it uses less digits than its factorization.

49670638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21626.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 49670638 is about 7047.7399214216. The cubic root of 49670638 is about 367.5924471636.

The spelling of 49670638 in words is "forty-nine million, six hundred seventy thousand, six hundred thirty-eight".