47371428 has 36 divisors (see below), whose sum is σ = 128956828. Its totient is φ = 14575680.

The previous prime is 47371411. The next prime is 47371439. The reversal of 47371428 is 82417374.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 44195904 = 1782^2 + 6648^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47371392 and 47371401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50143 + ... + 51078.

Almost surely, 2^47371428 is an apocalyptic number.

It is an amenable number.

47371428 is an abundant number, since it is smaller than the sum of its proper divisors (81585400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47371428 is a wasteful number, since it uses less digits than its factorization.

47371428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101244 (or 101239 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47371428 is about 6882.6904623120. The cubic root of 47371428 is about 361.8307665157.

The spelling of 47371428 in words is "forty-seven million, three hundred seventy-one thousand, four hundred twenty-eight".