154950642 has 72 divisors (see below), whose sum is σ = 426069072. Its totient is φ = 40244400.

The previous prime is 154950623. The next prime is 154950647. The reversal of 154950642 is 246059451.

154950642 is a `hidden beast` number, since 1 + 5 + 4 + 9 + 5 + 0 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 154950597 and 154950606.

It is not an unprimeable number, because it can be changed into a prime (154950647) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1717 + ... + 17687.

It is an arithmetic number, because the mean of its divisors is an integer number (5917626).

Almost surely, 2^154950642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154950642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213034536).

154950642 is an abundant number, since it is smaller than the sum of its proper divisors (271118430).

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

154950642 is a wasteful number, since it uses less digits than its factorization.

154950642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004 (or 15994 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 154950642 is about 12447.9171751743. The cubic root of 154950642 is about 537.1115110227. Note that the first 3 decimals are identical.

The spelling of 154950642 in words is "one hundred fifty-four million, nine hundred fifty thousand, six hundred forty-two".