3969402 has 16 divisors (see below), whose sum is σ = 8074080. Its totient is φ = 1300592.

The previous prime is 3969391. The next prime is 3969419. The reversal of 3969402 is 2049693.

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, 5253 + ... + 5960.

It is an arithmetic number, because the mean of its divisors is an integer number (504630).

Almost surely, 2^3969402 is an apocalyptic number.

3969402 is an abundant number, since it is smaller than the sum of its proper divisors (4104678).

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

3969402 is a wasteful number, since it uses less digits than its factorization.

3969402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 3969402 is about 1992.3358150673. The cubic root of 3969402 is about 158.3343079041.

It can be divided in two parts, 3969 and 402, that added together give a triangular number (4371 = T₉₃).

The spelling of 3969402 in words is "three million, nine hundred sixty-nine thousand, four hundred two".