3945742270 has 16 divisors (see below), whose sum is σ = 7156554768. Its totient is φ = 1566248320.

The previous prime is 3945742267. The next prime is 3945742277. The reversal of 3945742270 is 722475493.

It is a super-2 number, since 2×3945742270² = 31137764122529505800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945742277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504699 + ... + 1507318.

It is an arithmetic number, because the mean of its divisors is an integer number (447284673).

Almost surely, 2^3945742270 is an apocalyptic number.

3945742270 is a deficient number, since it is larger than the sum of its proper divisors (3210812498).

3945742270 is a wasteful number, since it uses less digits than its factorization.

3945742270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012155.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 3945742270 is about 62815.1436359100. The cubic root of 3945742270 is about 1580.1909545953.

The spelling of 3945742270 in words is "three billion, nine hundred forty-five million, seven hundred forty-two thousand, two hundred seventy".