157405678 has 16 divisors (see below), whose sum is σ = 244651680. Its totient is φ = 75864096.

The previous prime is 157405663. The next prime is 157405697. The reversal of 157405678 is 876504751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40300 + ... + 44032.

It is an arithmetic number, because the mean of its divisors is an integer number (15290730).

Almost surely, 2^157405678 is an apocalyptic number.

157405678 is a deficient number, since it is larger than the sum of its proper divisors (87246002).

157405678 is a wasteful number, since it uses less digits than its factorization.

157405678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 157405678 is about 12546.1419567929. The cubic root of 157405678 is about 539.9333228144.

The spelling of 157405678 in words is "one hundred fifty-seven million, four hundred five thousand, six hundred seventy-eight".