154678340 has 24 divisors (see below), whose sum is σ = 325875480. Its totient is φ = 61671168.

The previous prime is 154678333. The next prime is 154678357. The reversal of 154678340 is 43876451.

It can be written as a sum of positive squares in 4 ways, for example, as 521284 + 154157056 = 722^2 + 12416^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 154678294 and 154678303.

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, 6095 + ... + 18614.

It is an arithmetic number, because the mean of its divisors is an integer number (13578145).

Almost surely, 2^154678340 is an apocalyptic number.

154678340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154678340 is an abundant number, since it is smaller than the sum of its proper divisors (171197140).

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

154678340 is a wasteful number, since it uses less digits than its factorization.

154678340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25031 (or 25029 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 154678340 is about 12436.9747125256. The cubic root of 154678340 is about 536.7966961565.

The spelling of 154678340 in words is "one hundred fifty-four million, six hundred seventy-eight thousand, three hundred forty".