3721023420 has 24 divisors (see below), whose sum is σ = 10418865744. Its totient is φ = 992272896.

The previous prime is 3721023401. The next prime is 3721023431. The reversal of 3721023420 is 243201273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31008469 + ... + 31008588.

It is an arithmetic number, because the mean of its divisors is an integer number (434119406).

Almost surely, 2^3721023420 is an apocalyptic number.

3721023420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3721023420 is an abundant number, since it is smaller than the sum of its proper divisors (6697842324).

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

3721023420 is a wasteful number, since it uses less digits than its factorization.

3721023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62017069 (or 62017067 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 3721023420 is about 61000.1919669111. The cubic root of 3721023420 is about 1549.6042583168.

Adding to 3721023420 its reverse (243201273), we get a palindrome (3964224693).

The spelling of 3721023420 in words is "three billion, seven hundred twenty-one million, twenty-three thousand, four hundred twenty".