3746502720 has 140 divisors (see below), whose sum is σ = 13327061484. Its totient is φ = 999060480.

The previous prime is 3746502719. The next prime is 3746502731. The reversal of 3746502720 is 272056473.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2747437056 + 999065664 = 52416^2 + 31608^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46351 + ... + 98190.

Almost surely, 2^3746502720 is an apocalyptic number.

3746502720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3746502720 is an abundant number, since it is smaller than the sum of its proper divisors (9580558764).

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

3746502720 is a wasteful number, since it uses less digits than its factorization.

3746502720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144570 (or 144551 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 3746502720 is about 61208.6817371523. The cubic root of 3746502720 is about 1553.1331311092.

The spelling of 3746502720 in words is "three billion, seven hundred forty-six million, five hundred two thousand, seven hundred twenty".