146787420 has 48 divisors (see below), whose sum is σ = 442622880. Its totient is φ = 36132096.

The previous prime is 146787413. The next prime is 146787467. The reversal of 146787420 is 24787641.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93315 + ... + 94874.

It is an arithmetic number, because the mean of its divisors is an integer number (9221310).

Almost surely, 2^146787420 is an apocalyptic number.

146787420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146787420 is an abundant number, since it is smaller than the sum of its proper divisors (295835460).

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

146787420 is a wasteful number, since it uses less digits than its factorization.

146787420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188214 (or 188212 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 146787420 is about 12115.5858298309. The cubic root of 146787420 is about 527.5086826510.

The spelling of 146787420 in words is "one hundred forty-six million, seven hundred eighty-seven thousand, four hundred twenty".