146643420 has 96 divisors (see below), whose sum is σ = 511934976. Its totient is φ = 30470400.

The previous prime is 146643397. The next prime is 146643437. The reversal of 146643420 is 24346641.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11251 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (5332656).

Almost surely, 2^146643420 is an apocalyptic number.

146643420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146643420 is an abundant number, since it is smaller than the sum of its proper divisors (365291556).

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

146643420 is a wasteful number, since it uses less digits than its factorization.

146643420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31771 (or 31769 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 146643420 is about 12109.6416131940. The cubic root of 146643420 is about 527.3361290279.

The spelling of 146643420 in words is "one hundred forty-six million, six hundred forty-three thousand, four hundred twenty".