34478157 has 8 divisors (see below), whose sum is σ = 52538176. Its totient is φ = 19701792.

The previous prime is 34478137. The next prime is 34478167. The reversal of 34478157 is 75187443.

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

It is not a de Polignac number, because 34478157 - 2⁷ = 34478029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34478137) 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, 820888 + ... + 820929.

It is an arithmetic number, because the mean of its divisors is an integer number (6567272).

Almost surely, 2^34478157 is an apocalyptic number.

It is an amenable number.

34478157 is a deficient number, since it is larger than the sum of its proper divisors (18060019).

34478157 is a wasteful number, since it uses less digits than its factorization.

34478157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641827.

The product of its digits is 94080, while the sum is 39.

The square root of 34478157 is about 5871.8103681914. The cubic root of 34478157 is about 325.4727856606.

The spelling of 34478157 in words is "thirty-four million, four hundred seventy-eight thousand, one hundred fifty-seven".