3491052978 has 32 divisors (see below), whose sum is σ = 7981885440. Its totient is φ = 997151760.

The previous prime is 3491052949. The next prime is 3491052979. The reversal of 3491052978 is 8792501943.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3491052979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162553 + ... + 182771.

It is an arithmetic number, because the mean of its divisors is an integer number (249433920).

Almost surely, 2^3491052978 is an apocalyptic number.

3491052978 is an abundant number, since it is smaller than the sum of its proper divisors (4490832462).

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

3491052978 is a wasteful number, since it uses less digits than its factorization.

3491052978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24342.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 3491052978 is about 59085.1333077958. The cubic root of 3491052978 is about 1516.9996472990. Note that the first 3 decimals are identical.

The spelling of 3491052978 in words is "three billion, four hundred ninety-one million, fifty-two thousand, nine hundred seventy-eight".