154064442 has 64 divisors (see below), whose sum is σ = 376104960. Its totient is φ = 41114304.

The previous prime is 154064437. The next prime is 154064447. The reversal of 154064442 is 244460451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (154064437) and next prime (154064447).

It is not an unprimeable number, because it can be changed into a prime (154064447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39684 + ... + 43392.

It is an arithmetic number, because the mean of its divisors is an integer number (5876640).

Almost surely, 2^154064442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154064442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188052480).

154064442 is an abundant number, since it is smaller than the sum of its proper divisors (222040518).

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

154064442 is a wasteful number, since it uses less digits than its factorization.

154064442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 154064442 is about 12412.2698165968. The cubic root of 154064442 is about 536.0855960613.

The spelling of 154064442 in words is "one hundred fifty-four million, sixty-four thousand, four hundred forty-two".