47579540 has 12 divisors (see below), whose sum is σ = 99917076. Its totient is φ = 19031808.

The previous prime is 47579533. The next prime is 47579551. The reversal of 47579540 is 4597574.

It can be written as a sum of positive squares in 2 ways, for example, as 31047184 + 16532356 = 5572^2 + 4066^2 .

It is a super-2 number, since 2×47579540² = 4527625253223200, 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 3 ways as a sum of consecutive naturals, for example, 1189469 + ... + 1189508.

It is an arithmetic number, because the mean of its divisors is an integer number (8326423).

Almost surely, 2^47579540 is an apocalyptic number.

It is an amenable number.

47579540 is an abundant number, since it is smaller than the sum of its proper divisors (52337536).

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

47579540 is a wasteful number, since it uses less digits than its factorization.

47579540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378986 (or 2378984 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 47579540 is about 6897.7924004713. The cubic root of 47579540 is about 362.3598570443.

The spelling of 47579540 in words is "forty-seven million, five hundred seventy-nine thousand, five hundred forty".