146421804 has 36 divisors (see below), whose sum is σ = 353055192. Its totient is φ = 47229120.

The previous prime is 146421797. The next prime is 146421823. The reversal of 146421804 is 408124641.

It is a super-2 number, since 2×146421804² = 42878689373228832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5184 + ... + 17880.

Almost surely, 2^146421804 is an apocalyptic number.

It is an amenable number.

146421804 is an abundant number, since it is smaller than the sum of its proper divisors (206633388).

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

146421804 is a wasteful number, since it uses less digits than its factorization.

146421804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766 (or 12733 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 146421804 is about 12100.4877587641. The cubic root of 146421804 is about 527.0703481637.

The spelling of 146421804 in words is "one hundred forty-six million, four hundred twenty-one thousand, eight hundred four".