2217402 has 32 divisors (see below), whose sum is σ = 5376960. Its totient is φ = 671760.

The previous prime is 2217379. The next prime is 2217409. The reversal of 2217402 is 2047122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2217409) 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, 1273 + ... + 2460.

It is an arithmetic number, because the mean of its divisors is an integer number (168030).

2^2217402 is an apocalyptic number.

2217402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2217402 is an abundant number, since it is smaller than the sum of its proper divisors (3159558).

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

2217402 is a wasteful number, since it uses less digits than its factorization.

2217402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2217402 is about 1489.0943556404. The cubic root of 2217402 is about 130.4011670765.

It can be divided in two parts, 22 and 17402, that added together give a square (17424 = 132²).

The spelling of 2217402 in words is "two million, two hundred seventeen thousand, four hundred two".