47490428 has 12 divisors (see below), whose sum is σ = 83871480. Its totient is φ = 23527152.

The previous prime is 47490413. The next prime is 47490449. The reversal of 47490428 is 82409474.

It is a junction number, because it is equal to n+sod(n) for n = 47490391 and 47490400.

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, 54026 + ... + 54897.

It is an arithmetic number, because the mean of its divisors is an integer number (6989290).

Almost surely, 2^47490428 is an apocalyptic number.

It is an amenable number.

47490428 is a deficient number, since it is larger than the sum of its proper divisors (36381052).

47490428 is a wasteful number, since it uses less digits than its factorization.

47490428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109036 (or 109034 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 47490428 is about 6891.3299151905. The cubic root of 47490428 is about 362.1334936980.

The spelling of 47490428 in words is "forty-seven million, four hundred ninety thousand, four hundred twenty-eight".