49333978 has 4 divisors (see below), whose sum is σ = 74000970. Its totient is φ = 24666988.

The previous prime is 49333969. The next prime is 49333981. The reversal of 49333978 is 87933394.

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

It can be written as a sum of positive squares in only one way, i.e., 49322529 + 11449 = 7023^2 + 107^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12333493 + ... + 12333496.

Almost surely, 2^49333978 is an apocalyptic number.

49333978 is a deficient number, since it is larger than the sum of its proper divisors (24666992).

49333978 is a wasteful number, since it uses less digits than its factorization.

49333978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24666991.

The product of its digits is 489888, while the sum is 46.

The square root of 49333978 is about 7023.8150602077. The cubic root of 49333978 is about 366.7600685838.

It can be divided in two parts, 4933 and 3978, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 49333978 in words is "forty-nine million, three hundred thirty-three thousand, nine hundred seventy-eight".