3399507978 has 32 divisors (see below), whose sum is σ = 7054805184. Its totient is φ = 1091169792.

The previous prime is 3399507971. The next prime is 3399508001. The reversal of 3399507978 is 8797059933.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3399507971) 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, 57400 + ... + 100467.

It is an arithmetic number, because the mean of its divisors is an integer number (220462662).

Almost surely, 2^3399507978 is an apocalyptic number.

3399507978 is an abundant number, since it is smaller than the sum of its proper divisors (3655297206).

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

3399507978 is a wasteful number, since it uses less digits than its factorization.

3399507978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158006.

The product of its (nonzero) digits is 12859560, while the sum is 60.

The square root of 3399507978 is about 58305.2997419617. The cubic root of 3399507978 is about 1503.6220583114.

The spelling of 3399507978 in words is "three billion, three hundred ninety-nine million, five hundred seven thousand, nine hundred seventy-eight".