72000478 has 16 divisors (see below), whose sum is σ = 119579904. Its totient is φ = 32238360.

The previous prime is 72000449. The next prime is 72000479. The reversal of 72000478 is 87400027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72000479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22950 + ... + 25897.

It is an arithmetic number, because the mean of its divisors is an integer number (7473744).

Almost surely, 2^72000478 is an apocalyptic number.

72000478 is a deficient number, since it is larger than the sum of its proper divisors (47579426).

72000478 is a wasteful number, since it uses less digits than its factorization.

72000478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48927.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 72000478 is about 8485.3095406119. The cubic root of 72000478 is about 416.0176852380.

The spelling of 72000478 in words is "seventy-two million, four hundred seventy-eight", and thus it is an aban number.