49971478 has 16 divisors (see below), whose sum is σ = 76141296. Its totient is φ = 24593440.

The previous prime is 49971469. The next prime is 49971499. The reversal of 49971478 is 87417994.

It is a super-2 number, since 2×49971478² = 4994297227008968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76200 + ... + 76852.

It is an arithmetic number, because the mean of its divisors is an integer number (4758831).

Almost surely, 2^49971478 is an apocalyptic number.

49971478 is a deficient number, since it is larger than the sum of its proper divisors (26169818).

49971478 is a wasteful number, since it uses less digits than its factorization.

49971478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199.

The product of its digits is 508032, while the sum is 49.

The square root of 49971478 is about 7069.0507142048. The cubic root of 49971478 is about 368.3330859090. Note that the first 3 decimals are identical.

The spelling of 49971478 in words is "forty-nine million, nine hundred seventy-one thousand, four hundred seventy-eight".