1372740444 has 36 divisors (see below), whose sum is σ = 3475888416. Its totient is φ = 456801408.

The previous prime is 1372740437. The next prime is 1372740449. The reversal of 1372740444 is 4440472731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1372740399 and 1372740408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372740449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10804 + ... + 53499.

It is an arithmetic number, because the mean of its divisors is an integer number (96552456).

Almost surely, 2^1372740444 is an apocalyptic number.

It is an amenable number.

1372740444 is an abundant number, since it is smaller than the sum of its proper divisors (2103147972).

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

1372740444 is a wasteful number, since it uses less digits than its factorization.

1372740444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64906 (or 64901 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 1372740444 is about 37050.5120612388. The cubic root of 1372740444 is about 1111.3805952559.

The spelling of 1372740444 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, four hundred forty-four".