3450978 has 16 divisors (see below), whose sum is σ = 7668960. Its totient is φ = 1150308.

The previous prime is 3450977. The next prime is 3450991. The reversal of 3450978 is 8790543.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3450977) 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, 31900 + ... + 32007.

It is an arithmetic number, because the mean of its divisors is an integer number (479310).

Almost surely, 2^3450978 is an apocalyptic number.

3450978 is an abundant number, since it is smaller than the sum of its proper divisors (4217982).

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

3450978 is a wasteful number, since it uses less digits than its factorization.

3450978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63918 (or 63912 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3450978 is about 1857.6808121957. The cubic root of 3450978 is about 151.1172575755.

The spelling of 3450978 in words is "three million, four hundred fifty thousand, nine hundred seventy-eight".