2149620 has 48 divisors (see below), whose sum is σ = 6568128. Its totient is φ = 520960.

The previous prime is 2149619. The next prime is 2149621. The reversal of 2149620 is 269412.

It is an interprime number because it is at equal distance from previous prime (2149619) and next prime (2149621).

It is a super-2 number, since 2×2149620² = 9241732288800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149621) 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, 969 + ... + 2288.

It is an arithmetic number, because the mean of its divisors is an integer number (136836).

2^2149620 is an apocalyptic number.

2149620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149620 is an abundant number, since it is smaller than the sum of its proper divisors (4418508).

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

2149620 is a wasteful number, since it uses less digits than its factorization.

2149620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2149620 is about 1466.1582452109. The cubic root of 2149620 is about 129.0586837140.

The spelling of 2149620 in words is "two million, one hundred forty-nine thousand, six hundred twenty".