3705142749 has 32 divisors (see below), whose sum is σ = 6426998784. Its totient is φ = 1841062080.

The previous prime is 3705142663. The next prime is 3705142751. The reversal of 3705142749 is 9472415073.

3705142749 = T₅₂₈₅ + T₅₂₈₆ + ... + T₅₅₃₇.

It is not a de Polignac number, because 3705142749 - 2⁹ = 3705142237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3705142749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705142799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343374 + ... + 353999.

It is an arithmetic number, because the mean of its divisors is an integer number (200843712).

Almost surely, 2^3705142749 is an apocalyptic number.

It is an amenable number.

3705142749 is a deficient number, since it is larger than the sum of its proper divisors (2721856035).

3705142749 is a wasteful number, since it uses less digits than its factorization.

3705142749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697417.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 3705142749 is about 60869.8837603622. The cubic root of 3705142749 is about 1547.3966356214.

It can be divided in two parts, 37051 and 42749, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 3705142749 in words is "three billion, seven hundred five million, one hundred forty-two thousand, seven hundred forty-nine".