1372705620 has 192 divisors, whose sum is σ = 4551966720. Its totient is φ = 304704000.

The previous prime is 1372705603. The next prime is 1372705643. The reversal of 1372705620 is 265072731.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1192045 + ... + 1193195.

It is an arithmetic number, because the mean of its divisors is an integer number (23708160).

Almost surely, 2^1372705620 is an apocalyptic number.

1372705620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372705620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275983360).

1372705620 is an abundant number, since it is smaller than the sum of its proper divisors (3179261100).

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

1372705620 is a wasteful number, since it uses less digits than its factorization.

1372705620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 1372705620 is about 37050.0421052392. The cubic root of 1372705620 is about 1111.3711972557.

The spelling of 1372705620 in words is "one billion, three hundred seventy-two million, seven hundred five thousand, six hundred twenty".