154420002 has 24 divisors (see below), whose sum is σ = 364993200. Its totient is φ = 46793880.

The previous prime is 154420001. The next prime is 154420003. The reversal of 154420002 is 200024451.

It is an interprime number because it is at equal distance from previous prime (154420001) and next prime (154420003).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (154420001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389752 + ... + 390147.

It is an arithmetic number, because the mean of its divisors is an integer number (15208050).

Almost surely, 2^154420002 is an apocalyptic number.

154420002 is an abundant number, since it is smaller than the sum of its proper divisors (210573198).

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

154420002 is a wasteful number, since it uses less digits than its factorization.

154420002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779918 (or 779915 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 154420002 is about 12426.5844864951. The cubic root of 154420002 is about 536.4976836813.

Adding to 154420002 its reverse (200024451), we get a palindrome (354444453).

The spelling of 154420002 in words is "one hundred fifty-four million, four hundred twenty thousand, two".