154338646 has 48 divisors (see below), whose sum is σ = 300303360. Its totient is φ = 58172400.

The previous prime is 154338641. The next prime is 154338649. The reversal of 154338646 is 646833451.

It is a super-2 number, since 2×154338646² = 47640835298226632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 = 154338599 and 154338608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154338641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51045 + ... + 53983.

It is an arithmetic number, because the mean of its divisors is an integer number (6256320).

Almost surely, 2^154338646 is an apocalyptic number.

154338646 is a deficient number, since it is larger than the sum of its proper divisors (145964714).

154338646 is a wasteful number, since it uses less digits than its factorization.

154338646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2990 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 154338646 is about 12423.3105893719. The cubic root of 154338646 is about 536.4034494016.

The spelling of 154338646 in words is "one hundred fifty-four million, three hundred thirty-eight thousand, six hundred forty-six".