3929740 has 24 divisors (see below), whose sum is σ = 8290800. Its totient is φ = 1564608.

The previous prime is 3929729. The next prime is 3929741. The reversal of 3929740 is 479293.

It is a junction number, because it is equal to n+sod(n) for n = 3929696 and 3929705.

It is not an unprimeable number, because it can be changed into a prime (3929741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6699 + ... + 7261.

It is an arithmetic number, because the mean of its divisors is an integer number (345450).

Almost surely, 2^3929740 is an apocalyptic number.

It is an amenable number.

3929740 is an abundant number, since it is smaller than the sum of its proper divisors (4361060).

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

3929740 is a wasteful number, since it uses less digits than its factorization.

3929740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 3929740 is about 1982.3571827499. The cubic root of 3929740 is about 157.8051863748.

The spelling of 3929740 in words is "three million, nine hundred twenty-nine thousand, seven hundred forty".