3169091940 has 96 divisors (see below), whose sum is σ = 10152172800. Its totient is φ = 723572736.

The previous prime is 3169091903. The next prime is 3169091951. The reversal of 3169091940 is 491909613.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3169091892 and 3169091901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436984 + ... + 444176.

It is an arithmetic number, because the mean of its divisors is an integer number (105751800).

Almost surely, 2^3169091940 is an apocalyptic number.

3169091940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3169091940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5076086400).

3169091940 is an abundant number, since it is smaller than the sum of its proper divisors (6983080860).

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

3169091940 is a wasteful number, since it uses less digits than its factorization.

3169091940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261 (or 8259 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 3169091940 is about 56294.6883817648. The cubic root of 3169091940 is about 1468.8528140733.

The spelling of 3169091940 in words is "three billion, one hundred sixty-nine million, ninety-one thousand, nine hundred forty".