146642420 has 12 divisors (see below), whose sum is σ = 307949124. Its totient is φ = 58656960.

The previous prime is 146642381. The next prime is 146642429. The reversal of 146642420 is 24246641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93818596 + 52823824 = 9686^2 + 7268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146642429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666041 + ... + 3666080.

It is an arithmetic number, because the mean of its divisors is an integer number (25662427).

Almost surely, 2^146642420 is an apocalyptic number.

146642420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146642420 is an abundant number, since it is smaller than the sum of its proper divisors (161306704).

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

146642420 is a wasteful number, since it uses less digits than its factorization.

146642420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332130 (or 7332128 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 146642420 is about 12109.6003237101. The cubic root of 146642420 is about 527.3349303439.

The spelling of 146642420 in words is "one hundred forty-six million, six hundred forty-two thousand, four hundred twenty".