146421678 has 32 divisors (see below), whose sum is σ = 316108800. Its totient is φ = 44947296.

The previous prime is 146421673. The next prime is 146421683. The reversal of 146421678 is 876124641.

It is an interprime number because it is at equal distance from previous prime (146421673) and next prime (146421683).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a house number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146421673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35403 + ... + 39321.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2^146421678 is an apocalyptic number.

146421678 is an abundant number, since it is smaller than the sum of its proper divisors (169687122).

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

146421678 is a wasteful number, since it uses less digits than its factorization.

146421678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416.

The product of its digits is 64512, while the sum is 39.

The square root of 146421678 is about 12100.4825523613. The cubic root of 146421678 is about 527.0701969775.

The spelling of 146421678 in words is "one hundred forty-six million, four hundred twenty-one thousand, six hundred seventy-eight".