49018478 has 8 divisors (see below), whose sum is σ = 74535168. Its totient is φ = 24173424.

The previous prime is 49018477. The next prime is 49018507. The reversal of 49018478 is 87481094.

It is a happy number.

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

It is a super-2 number, since 2×49018478² = 4805622370872968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49018477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167726 + ... + 168017.

It is an arithmetic number, because the mean of its divisors is an integer number (9316896).

Almost surely, 2^49018478 is an apocalyptic number.

49018478 is a deficient number, since it is larger than the sum of its proper divisors (25516690).

49018478 is a wasteful number, since it uses less digits than its factorization.

49018478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335818.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 49018478 is about 7001.3197327361. The cubic root of 49018478 is about 365.9765629433.

The spelling of 49018478 in words is "forty-nine million, eighteen thousand, four hundred seventy-eight".