3949437430 has 8 divisors (see below), whose sum is σ = 7108987392. Its totient is φ = 1579774968.

The previous prime is 3949437421. The next prime is 3949437431. The reversal of 3949437430 is 347349493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949437431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197471862 + ... + 197471881.

It is an arithmetic number, because the mean of its divisors is an integer number (888623424).

Almost surely, 2^3949437430 is an apocalyptic number.

3949437430 is a deficient number, since it is larger than the sum of its proper divisors (3159549962).

3949437430 is a wasteful number, since it uses less digits than its factorization.

3949437430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394943750.

The product of its (nonzero) digits is 979776, while the sum is 46.

The square root of 3949437430 is about 62844.5497239021. The cubic root of 3949437430 is about 1580.6840799450.

The spelling of 3949437430 in words is "three billion, nine hundred forty-nine million, four hundred thirty-seven thousand, four hundred thirty".