47761540 has 24 divisors (see below), whose sum is σ = 100481472. Its totient is φ = 19069920.

The previous prime is 47761537. The next prime is 47761601. The reversal of 47761540 is 4516774.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 47761496 and 47761505.

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, 11095 + ... + 14785.

It is an arithmetic number, because the mean of its divisors is an integer number (4186728).

Almost surely, 2^47761540 is an apocalyptic number.

It is an amenable number.

47761540 is an abundant number, since it is smaller than the sum of its proper divisors (52719932).

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

47761540 is a wasteful number, since it uses less digits than its factorization.

47761540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347 (or 4345 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 47761540 is about 6910.9724351932. The cubic root of 47761540 is about 362.8212989639.

The spelling of 47761540 in words is "forty-seven million, seven hundred sixty-one thousand, five hundred forty".