47440778 has 32 divisors (see below), whose sum is σ = 93944448. Its totient is φ = 17395200.

The previous prime is 47440769. The next prime is 47440787. The reversal of 47440778 is 87704474.

It is an interprime number because it is at equal distance from previous prime (47440769) and next prime (47440787).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6443 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (2935764).

Almost surely, 2^47440778 is an apocalyptic number.

47440778 is a deficient number, since it is larger than the sum of its proper divisors (46503670).

47440778 is a wasteful number, since it uses less digits than its factorization.

47440778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 47440778 is about 6887.7266205912. The cubic root of 47440778 is about 362.0072493283.

The spelling of 47440778 in words is "forty-seven million, four hundred forty thousand, seven hundred seventy-eight".