74457270 has 24 divisors (see below), whose sum is σ = 193589136. Its totient is φ = 19855248.

The previous prime is 74457217. The next prime is 74457293. The reversal of 74457270 is 7275447.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413562 + ... + 413741.

It is an arithmetic number, because the mean of its divisors is an integer number (8066214).

Almost surely, 2^74457270 is an apocalyptic number.

74457270 is an abundant number, since it is smaller than the sum of its proper divisors (119131866).

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

74457270 is a wasteful number, since it uses less digits than its factorization.

74457270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827316 (or 827313 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 74457270 is about 8628.8626133460. The cubic root of 74457270 is about 420.6966330065.

The spelling of 74457270 in words is "seventy-four million, four hundred fifty-seven thousand, two hundred seventy".