74257070 has 8 divisors (see below), whose sum is σ = 133662744. Its totient is φ = 29702824.

The previous prime is 74257063. The next prime is 74257103. The reversal of 74257070 is 7075247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74257070² = 11028224889969800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3712844 + ... + 3712863.

It is an arithmetic number, because the mean of its divisors is an integer number (16707843).

Almost surely, 2^74257070 is an apocalyptic number.

74257070 is a deficient number, since it is larger than the sum of its proper divisors (59405674).

74257070 is a wasteful number, since it uses less digits than its factorization.

74257070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7425714.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 74257070 is about 8617.2542030510. The cubic root of 74257070 is about 420.3192395238.

The spelling of 74257070 in words is "seventy-four million, two hundred fifty-seven thousand, seventy".