49251478 has 8 divisors (see below), whose sum is σ = 73933272. Its totient is φ = 24607056.

The previous prime is 49251457. The next prime is 49251491. The reversal of 49251478 is 87415294.

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

It is a self number, because there is not a number n which added to its sum of digits gives 49251478.

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, 5775 + ... + 11482.

It is an arithmetic number, because the mean of its divisors is an integer number (9241659).

Almost surely, 2^49251478 is an apocalyptic number.

49251478 is a deficient number, since it is larger than the sum of its proper divisors (24681794).

49251478 is a wasteful number, since it uses less digits than its factorization.

49251478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18686.

The product of its digits is 80640, while the sum is 40.

The square root of 49251478 is about 7017.9397261590. The cubic root of 49251478 is about 366.5555132315. Note that the first 4 decimals are identical.

It can be divided in two parts, 49251 and 478, that added together give a square (49729 = 223²).

The spelling of 49251478 in words is "forty-nine million, two hundred fifty-one thousand, four hundred seventy-eight".