4200978 has 16 divisors (see below), whose sum is σ = 8497440. Its totient is φ = 1384416.

The previous prime is 4200953. The next prime is 4200991. The reversal of 4200978 is 8790024.

It is a d-powerful number, because it can be written as 4³ + 2²¹ + 0 + 0 + 9⁴ + 7² + 8⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3400 + ... + 4467.

It is an arithmetic number, because the mean of its divisors is an integer number (531090).

Almost surely, 2^4200978 is an apocalyptic number.

4200978 is an abundant number, since it is smaller than the sum of its proper divisors (4296462).

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

4200978 is a wasteful number, since it uses less digits than its factorization.

4200978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4200978 is about 2049.6287468710. The cubic root of 4200978 is about 161.3553869100.

The spelling of 4200978 in words is "four million, two hundred thousand, nine hundred seventy-eight".